As federal health officials on Thursday cleared the way for Americans who are fully vaccinated against the coronavirus to drop mask wearing in most situations, some states lifted mask mandates, while others took a more cautious approach.
“We have all longed for this moment,” Dr. Rochelle P. Walensky, the director of the Centers for Disease Control and Prevention, said at a White House news conference on Thursday. “If you are fully vaccinated, you can start doing the things that you had stopped doing because of the pandemic.”
Most of the state officials who responded to the shift were Democrats. Half of the country’s governors — most of them Republicans — had already lifted mask mandates in some form.
On Thursday, the governors of New York, New Jersey, North Carolina and Virginia, and the mayors of New York City and Washington, all Democrats, said they were taking the new guidance from the C.D.C. under advisement before adopting it, as did the governor of Massachusetts, a Republican. In deference to local authorities, the C.D.C. said vaccinated people must continue to abide by existing state, local or tribal laws and regulations, and follow local rules for businesses and workplaces.
Gov. Andrew M. Cuomo of New York said that the state had “always relied on the facts and the science to guide us throughout the worst of this pandemic” and that he would review the new federal guidelines with the state Health Department and health experts in neighboring states. Mayor Bill de Blasio of New York City called the shift in guidance “a monumental day in the fight against Covid” but said the city would be reviewing the new rules “as masks will still be important for schools, public transportation, doctors offices and more.”
“The message is clear,” he added. “Vaccinations are the way to bring our city, our lives, back.”
In North Carolina, a spokeswoman for Gov. Roy Cooper echoed that idea, but said that an indoor mask mandate would remain in effect while state health officials reviewed the recommendations.
The Los Angeles County Department of Public Health said “the county and the state will review the recommendations in order to make sensible adjustments.” On Wednesday, Gov. Gavin Newsom of California said the state would eliminate its outdoor mask mandates on June 15, when the state plans to fully reopen.
After the C.D.C.’s new guidance was announced, at least seven states led by Democrats began to lift mask mandates. Connecticut, Illinois, Kentucky, Minnesota, Nevada, Oregon and Pennsylvania began to adjust their mask wearing guidance.
Gov. Andy Beshear of Kentucky called the C.D.C.’s announcement the “news that we have all been waiting for.”
In a recorded video, Mr. Beshear said there were “hundreds of thousands” of available vaccine appointments and encouraged all state residents to take advantage of them. “If you get vaccinated, the C.D.C. says it is safe to take that mask off.”
In Washington State, Gov. Jay Inslee, who usually wore a mask while speaking at his news conferences, began his gathering on Thursday by removing it. He said the state was immediately incorporating the new federal guidance on mask wearing.
“This is a heck of a benefit for people who have been annoyed by this mask,” Mr. Inslee said. “This is a really good reason to get vaccinated. That shot is a ticket to freedom from masks.”
The new policy seemed to catch many retailers and their workers by surprise. Macy’s, Target and the Gap said they were still reviewing the new guidance, while Home Depot said it had no plans to change its current rules requiring customers and workers to wear masks in its stores.
The United Food and Commercial Workers union, representing thousands of grocery store workers, criticized the C.D.C. for failing to consider how the new policy would impact workers who have to deal with customers who are not vaccinated. “Millions of Americans are doing the right thing and getting vaccinated, but essential workers are still forced to play mask police for shoppers who are unvaccinated and refuse to follow local Covid safety measures,” the union’s president, Marc Perrone, said in a statement. “Are they now supposed to become the vaccination police?”
The Retail Leaders Industry Association, a trade group, said that the policy complicated matters in states that still have mask mandates in place that retailers must follow. “These conflicting positions put retailers and their employees in incredibly difficult situations,” the group said in a statement.
The new advice — that Americans who are fully vaccinated against the virus may stop wearing masks or maintaining social distance in most indoor and outdoor settings, regardless of size — was a sharp turnabout for federal health officials. It also comes with caveats. Even vaccinated individuals must cover their faces and physically distance when going to doctors, hospitals or long-term care facilities like nursing homes; when traveling by bus, plane, train or other modes of public transportation, or while in transportation hubs like airports and bus stations; and in congregate settings such as homeless shelters, as well as prisons or jails.
At a White House news conference on Thursday, Dr. Walensky, the C.D.C. director, warned that unexpected twists in the pandemic could require the agency to again amend the guidance.
She defended the timing of the new mask guidance, pointing to a steep drop in coronavirus cases, which have dropped by about a third in the last two weeks, and a sustained increase in supply of vaccines.
Some fully vaccinated people have been infected with the coronavirus. Dr. Walensky said that any who develop symptoms should still use masks and get tested, she said. Asked how the new guidance might apply to businesses and schools, she said that the C.D.C. was working to rapidly issue new recommendations soon for specific settings, including for summer camps and travel.
The move could raise alarms among more cautious Americans, who may be more reluctant to engage in public activities when more people are unmasked. There is no way to know who is vaccinated and who is not, and a majority of the population is not yet fully vaccinated. Dr. Walensky added that immunocompromised people who have been fully vaccinated should consult their physicians before relinquishing a face mask.
Still, the changes are likely to galvanize Americans who have become unaccustomed to appearing in public unmasked — or to seeing others do so.
At the White House on Thursday, President Biden hailed the new recommendations as a “milestone” in the nation’s effort to beat back the pandemic.
“Today is a great day for America,” he said during an address in the Rose Garden, where he and Vice President Kamala Harris appeared without masks. “You’ve earned the right to do something that Americans are known for all around the world: greeting others with a smile.”
But he cautioned that many adults were still not vaccinated, and pleaded with Americans to be patient with those who had been but still wanted to wear a mask for now as they gradually adjusted to a new normal after more than a year of living through the pandemic.
“Please treat them with kindness and respect,” he said. “We’ve had too much conflict, too much bitterness, too much anger, too much politicization of this issue about wearing masks. Let’s put it to rest.”
Michael Corkery, Sapna Maheshwari, Lauren Hirsch and Mike Baker contributed reporting.
An earlier version of this article misstated the party affiliation of the governor of Massachusetts. He is a Republican, not a Democrat.
Federal health officials on Thursday advised Americans who are fully vaccinated against the coronavirus that they could stop wearing masks or maintaining social distance in most settings, the clearest sign yet that the pandemic might be nearing an end in the United States.
The new recommendations from the Centers for Disease Control and Prevention caught state officials and businesses by surprise and raised a host of difficult questions about how the guidelines would be carried out. But the advice came as welcome news to many Americans who were weary of restrictions and traumatized by the past year.
“We have all longed for this moment,” Dr. Rochelle P. Walensky, the C.D.C. director, said at a White House news conference on Thursday. “If you are fully vaccinated, you can start doing the things that you had stopped doing because of the pandemic.”
Masks had come to symbolize a bitter partisan divide. Setting them aside in restaurants and sidewalks, in museums and shops, would represent not just the beginning of the end of the pandemic but hope for a return to normalcy.
Permission to stop using masks also offers an incentive to the many millions who are still holding out on vaccination. As of Thursday, about 155 million people had received at least one dose of a Covid-19 vaccine, but only about one-third of the nation, 119 million people, had been fully vaccinated.
And the pace of vaccination has slowed: Providers are administering about 2.09 million doses per day on average, about a 38 percent decrease from the peak of 3.38 million reported in mid-April.
At the White House on Thursday, President Biden hailed the new recommendations as a “milestone” in the nation’s effort to beat back the pandemic and urged Americans to roll up their sleeves for vaccinations.
While there may well be scientific justification for the guidelines, they raised a host of questions for which there are no easy answers: How to trust that unvaccinated neighbors will wear masks when they should? What about younger children, for whom no vaccinations have been authorized, and schools? Is it possible to enforce such guidelines?
More than a year after federal health officials told Americans to cover their faces when venturing out in public, the Centers for Disease Control and Prevention said on Thursday that fully vaccinated people could start taking off their masks in many more settings — with caveats.
The C.D.C. advice does not override mask orders issued by states, counties or cities. Even fully vaccinated people are still told to cover their faces when flying or taking public transit, or visiting health care facilities,or congregate settings like prisons and homeless shelters.
The guidance leaves a number of issues unaddressed. There was no specific language about masking in schools, for instance.
And an even broader question remains unclear: Who knows who has actually been vaccinated and can claim the new freedoms?
About 36 percent of people in the United States are fully vaccinated, and there is no way to tell them apart from the 64 percent of people who are not. People who receive a vaccine are issued a white paper card, but online scammers have sold forged versions of those.
The new guidance reopened discussions of so-called vaccine passports, which would certify someone’s vaccination status. Efforts to create a more robust system of such passports have been largely derailed in the United States by concerns about privacy and backlash from Republican politicians. New York State has created its own version of a vaccine passport.
When federal health officials said on Thursday that fully vaccinated Americans no longer needed to wear masks in most places, it came as a surprise to many people in public health. It also was a stark contrast with the views of a large majority of epidemiologists surveyed in the last two weeks by The New York Times.
In the informal survey, 80 percent said they thought Americans would need to wear masks in public indoor places for at least another year. Just 5 percent said people would be able to stop wearing masks indoors by this summer.
In large crowds outdoors, like at a concert or protest, 88 percent of the epidemiologists said it was necessary even for fully vaccinated people to wear masks.
“Unless the vaccination rates increase to 80 or 90 percent over the next few months, we should wear masks in large public indoor settings,” said Vivian Towe, a program officer at the Patient-Centered Outcomes Research Institute.
CHARLESTON, W.Va. — Jill Biden, the first lady, landed in West Virginia just as the Centers for Disease Control and Prevention said on Thursday that vaccinated Americans could, for the most part, remove their masks. So, just before she disembarked from her plane, she did.
After weeks of murky guidance from the C.D.C. on what vaccinated Americans can and can’t do, the sight of a maskless first lady went far to clear up confusion — at least in Charleston, where she visited a vaccine clinic for children set up inside a local high school.
“We feel naked!” Dr. Biden said to a group of junior Army officers who had gathered to greet her. “I didn’t mean it that way.”
It was a surreal and memorable moment that underscored in a very public way just how strange these past million or so months have been. Back in Washington, officials in the Biden White House (quite literally) were able to breathe freely again as, one by one, masks began to come off.
At the White House, a maskless President Biden struck a more statesmanlike tone when he addressed the public in the Rose Garden.
“The Centers for Disease Control and Prevention and C.D.C. announced that they’re no longer recommending that fully vaccinated people need wear masks,” Mr. Biden said. “This recommendation holds true whether you are inside or outside. I think it’s a great milestone, a great day.”
At an earlier meeting on infrastructure, held in the Oval Office with a bipartisan group of senators, Mr. Biden — whose advisers were so strict about masks that they were known to police private meetings — stripped off his face covering, and so did the senators, Senator Shelley Moore Capito of West Virginia told reporters.
In the West Wing, officials, who have refrained from holding large in-person meetings together, began removing their masks as the administration issued new guidance for anyone on the complex: Anyone who had received their last required vaccine dose at least 14 days earlier could now go mask-free.
Elsewhere in the capital, other lawmakers celebrated the new guidance.
Senator Mitch McConnell, Republican of Kentucky and the minority leader, quoted the Rev. Dr. Martin Luther King Jr. to reporters as he addressed them without a mask for the first time in months: “Free at last.”
In the House of Representatives, the Capitol’s attending physician issued an updated guidance for lawmakers and their staff that said those who were fully vaccinated could “resume activities that you did prior to the pandemic” more or less as normal inside House office buildings. But the physician, Dr. Brian P. Monahan, said face coverings would still be required around the House floor.
“For the Hall of the House: The present mask requirement and other guidelines remain unchanged until all members and floor staff are fully vaccinated,” he wrote in a memo circulated to House offices.
On the road in Charleston, Dr. Biden, accompanied by Senator Joe Manchin III, Democrat of West Virginia, did their part to motivate the public.
“You’ve all seen the latest from the C.D.C.? That means no masks inside or outside,” Mr. Manchin said to a group of reporters.
“What does that mean for the people of West Virginia?” a reporter asked.
“It means get vaccinated!” Mr. Manchin said. “We feel free.”
It didn’t hurt their cause that the actress Jennifer Garner, who grew up in the state, appeared alongside them for the visit.
Eduardo Torres, 53, was up early in Chicago on Thursday morning when he heard the news on the television: Younger adolescents, including his 14-year-old daughter, Raquel, were now eligible for the coronavirus vaccine.
“I told my wife, ‘I’ve got to take her to get vaccinated — immediately,’” he said.
The world’s first mass coronavirus inoculation campaign for children kicked off in earnest in the United States on Thursday after the federal government recommended making the Pfizer-BioNTech vaccine available to those aged 12 to 15. Vaccinations of adolescents had already begun this week in a few states, like Maine.
There are about 17 million children between the ages of 12 and 15 in the United States, representing about 5 percent of the population. The changes — which mean that people ages 12 and up are now eligible — also opened the possibility that many more children may soon return to a semblance of normalcy, attending camps this summer and returning to in-person school by fall.
By 9:30 a.m., Raquel was among the first wave of children in her age group to be vaccinated at a site near Wrigley Field and was excitedly listing the things she could do once she is fully vaccinated. Go to her high school in person again. See her friends without worrying. Return to playing volleyball and bowling.
“It’s just a beautiful thing that this is available,” Mr. Torres said.
Mayor Bill de Blasio encouraged parents to have their children vaccinated to protect their families. “Parents, let’s get our zoomers off of Zoom and back to life as normal,” he said Thursday morning.
To encourage more New Yorkers to get shots, the mayor announced that people who’ve been vaccinated can win tickets for two outdoor music festivals, the Governors Ball at Citi Field and Global Citizen Live in Central Park.
The Shake Shack restaurant chain said it would give vouchers good for a free hamburger or sandwich to people who are vaccinated at a city mobile clinic. And for the next month, it said, customers who show a vaccination cards can get a free side order of french fries.
Amanda Rosa contributed reporting.
Brett Carlsen for The New York Times
Aaron Nesheim for The New York Times
Tamir Kalifa for The New York Times
Brett Carlsen for The New York Times
Christopher Capozziello for The New York Times
James Estrin/The New York Times
Tamir Kalifa for The New York Times
Before they can resume indoor restaurant meals, parties and sleepovers with their friends, younger teenagers have been stopping at the mall. That’s where many were on Thursday, lining up not for the latest fashion fad or video game, but to become among the first children aged 12 to 15 to get the Pfizer-BioNTech vaccine, newly authorized for them by the federal government on Wednesday.
At a mall in San Antonio, Haley Cruz, 13, stood quietly in line with her parents until a nurse called her over. She sat still in an orange chair and winced behind a black mask when a nurse jabbed a needle on her left arm.
“It didn’t hurt, just a little pinch,” Haley said. “I feel better now.”
The night before, her mother, Regina Beltran, 47, had mentioned casually that instead of signing on for remote learning Thursday morning, they would be going to the Wonderland of the Americas mall, known for its display of flags of countries from around the world. Before Haley got too excited, though, Ms. Beltran explained that the trip was to get the vaccine.
“I now feel she is more protected — I was worried,” Ms. Beltran said, adding that the Cruz family had known at least 10 people who died from Covid-19. “Thank God she qualified. I don’t want to lose any more people.”
Officials in 49 states confirmed on Thursday that they were now offering the vaccine to people age 12 and up. State officials in Montana did not provide information, but county officials in parts of the state said they were offering shots to children in that age group.
Bigger crowds were expected at malls after the school day was over. And the atmosphere was similar at other vaccination sites.
At a Vanderbilt Health site in Nashville, a steady stream of children and their parents moved through the line during the day, beginning at 8 a.m. Open appointments for the day were filled within a few hours of being posted on Wednesday, said Heather O’Dell, who is overseeing Vanderbilt’s vaccine site operations. She expected 750 patients, mostly adolescents, on Thursday and was seeing weekend openings fill up as well.
“It’s almost like a social hour,” Ms. O’Dell said. “Kids are seeing other kids they go to school with. Parents are seeing other parents they haven’t seen in a while.”
For Calysta Magne-Gordon, 13, and her father, Cyrille Magne, there was no doubt about whether she would get the vaccine, only a question of how soon she would be eligible. She wanted the shot “as fast as possible,” she said.
“I was like, ‘Do it,’” Calysta said, snapping her fingers. “I don’t care how early I have to wake up in the morning, I need to get that vaccine.”
She has spent eighth grade in an online classroom. But now that she is getting vaccinated, she will be able to attend — in person — an overnight art and music camp in Michigan.
“I have a lot of friends who don’t live here,” she said. “If I am able to see them, that would be great. I can go see family out of state. There are so many social possibilities opened up. I can see so many people. I don’t have to worry about getting sick or potentially affecting family members.”
At a city-run vaccination site next to Wrigley Field in Chicago, families with teenagers were among the first to arrive on Thursday, stopping off for a shot before school or work.
Charlotte O’Halloran, 13, emerged with her father, Brian. She was the last member of their household to be vaccinated, following both parents and three older siblings.
“I’ll be able to go out more,” she said. “I can worry a little bit less.”
With new infections now engulfing rural regions across India even as the daily death toll in crowded cities remains staggeringly high, regional leaders across the country are engaged in a desperate struggle to secure vaccines and stretch the doses they have on hand.
The states of Maharashtra and Karnataka, where case numbers are surging, have suspended vaccination altogether for people under 45 so that older people can receive second doses.
And a government panel on Thursday recommended widening the gap — for the third time since March — between the first and second doses of the Oxford-AstraZeneca vaccine, also known as Covishield in India.
Prime Minister Narendra Modi of India is facing increasing pressure to quickly expand the scope of the country’s fledging Covid-19 vaccination campaign as major cities run out of doses.
Some states and cities have started floating their own global tenders to import vaccines.
In a rare show of unity, a dozen opposition parties called for free, universal vaccination in a letter that said the pandemic had “assumed unprecedented dimensions of a human catastrophe.”
The parties also said that Mr. Modi’s government should invoke an order temporarily suspending patent protections for vaccines — a proposal India and South Africa jointly made for all virus vaccines globally that is under consideration by the World Trade Organization. In India, the order would allow more factories to make Covaxin, the indigenous vaccine codeveloped by the Indian government’s top scientific research body and the Hyderabad-based company Bharat Biotech.
Covaxin is in such short supply that the capital, New Delhi, has had to shutter about 100 vaccination centers. All of the doses produced by the Serum Institute of India, which is producing the Oxford-AstraZeneca shots and is the world’s largest vaccine maker, are staying in India, but still falling far short of the requirements for a population of nearly 1.4 billion people.
The ad hoc approach could also further fuel the skepticism and hesitancy that greeted the rollout of shots this winter. Leaders of Mr. Modi’s Bharatiya Janata Party claimed that the virus had been all but defeated in India, possibly tempering interest in a vaccine.
Jairam Ramesh, leader of the opposition Indian National Congress party, questioned the validity of widening the intervals between doses.
“Is this because there are not enough stocks of the vaccines for all who are eligible or because professional scientific advice says so?” Mr. Ramesh wrote on Twitter.
India reported about 362,000 cases on Wednesday, with infection numbers appearing to level off in Delhi and in the financial capital, Mumbai, but picking up in the southern city of Bengaluru and across rural India.
Less than 3 percent of the population has been fully vaccinated.
Lockdown restrictions are in place in many parts of India, but on Thursday, when Muslims celebrated Eid al-Fitr, the end of the fasting month of Ramadan, people were seen crowding markets.
The Pfizer-BioNTech and Moderna coronavirus vaccines are safe and effective during pregnancy, according to preliminary results from two continuing studies.
Both vaccines produce robust immune responses in pregnant and lactating women, and are likely to provide at least some protection against two dangerous coronavirus variants, B.1.1.7 and B.1.351, according to a study published in JAMA on Thursday. Vaccinated women can also pass protective antibodies to their fetuses through the bloodstream and to their infants through breast milk, the research suggests.
In a second study, published in the journal Obstetrics & Gynecology on Tuesday, researchers found no evidence that either the Pfizer or Moderna vaccines damaged the placenta during pregnancy.
Covid presents serious risks during pregnancy. Research has shown that pregnant women with coronavirus symptoms are more likely to be admitted to the intensive care unit, to require mechanical ventilation and to die from the virus than are symptomatic women of a similar age who are not pregnant.
Because of these risks, the Centers for Disease Control and Prevention has recommended that the vaccines at least be made available to pregnant people, many of whom have opted to receive the shots.
“We can shift our framework from, ‘Let’s protect pregnant people from the vaccine,’ to ‘Let’s protect pregnant people and their infants through the vaccine,’” said Dr. Emily S. Miller, an expert in maternal-fetal medicine at Northwestern University and co-author of the placenta study. “I think that’s really powerful.”
A group of 18 scientists stated Thursday in a letter published in the journal Science that there is not enough evidence to decide whether a natural origin or an accidental laboratory leak caused the Covid-19 pandemic.
They argued, as the U.S. government and other countries have, for a new investigation to explore where the virus came from.
The organizers of the letter, Jesse Bloom, who studies the evolution of viruses at the Fred Hutchinson Cancer Research Center in Seattle, and David Relman, a microbiologist at Stanford University, said they strove to articulate a wait-and-see viewpoint that they believe is shared by many scientists. Many of the signers have not spoken out before.
“Most of the discussion you hear about SARS-CoV-2 origins at this point is coming from, I think, the relatively small number of people who feel very certain about their views,” Dr. Bloom said.
He added: “Anybody who’s making statements with a high level of certainty about this is just outstripping what’s possible to do with the available evidence.”
The new letter stated: “Theories of accidental release from a lab and zoonotic spillover both remain viable.”
A leading group of scientists urged governments and engineers to improve air quality in the workplace in the wake of the Covid-19 pandemic, drawing a parallel to movements that led to cleaner water, food safety rules and a ban on lead-based paint.
Sweeping public health reforms transformed not just our environment but expectations for what governments can do, according to a group of 39 scientists that published a manifesto of sorts on Thursday in the journal Science. They called for a “paradigm shift” in how citizens and government officials think about the quality of the air we breathe indoors.
The timing of the scientists’ call to action coincides with the nation’s large-scale reopening as coronavirus cases steeply decline: Americans are anxiously facing a return to offices, schools, restaurants and theaters — exactly the type of crowded indoor spaces in which the coronavirus is thought to thrive.
There is little doubt now that the coronavirus can linger in the air indoors, floating far beyond the recommended six feet of distance, the experts declared. The accumulating research puts the onus on policymakers and building engineers to provide clean air in public buildings and to minimize the risk of respiratory infections, they said.
“We expect to have clean water from the taps,” said Lidia Morawska, the group’s leader and an aerosol physicist at Queensland University of Technology in Australia. “We expect to have clean, safe food when we buy it in the supermarket. In the same way, we should expect clean air in our buildings and any shared spaces.”
Meeting the group’s recommendations would require new workplace standards for air quality, but the scientists maintained that the remedies do not have to be onerous. Air quality in buildings can be improved with a few simple fixes, they said: adding filters to existing ventilation systems, using portable air cleaners and ultraviolet lights — or even just opening the windows where possible.
While some states are offering residents incentives like savings bonds or sports tickets to encourage them to be vaccinated, a few are making a very different pitch: The sooner you get a shot, the sooner the state will fully reopen.
The latest is Oregon, where the governor said on Tuesday that the state’s remaining restrictions would stay in place until at least 70 percent of eligible residents 16 and older had had at least one shot.
“We still have some work to do to reach our 70 percent goal, but I am confident we can get there in June and return Oregon to a sense of normalcy,” said Gov. Kate Brown, a Democrat.
Oregon, where 49 percent of residents have had at least one dose, is one of the few states that is explicitly tying lifting its indoor mask requirement to the adult vaccination rate. Michigan, Minnesota and Pennsylvania also are awaiting the 70 percent threshold before moving forward with reopening plans.
In Michigan, capacity limits for businesses will lift two weeks after 65 percent of eligible residents have been vaccinated, and the gatherings and face mask orders will end two weeks after 70 percent of eligible residents have been fully vaccinated, Gov. Gretchen Whitmer said. Thirty-seven percent of residents there have been immunized in the state, which has shown one of the country’s steepest drops in cases over the past two weeks. The average number of new infections reported daily during that time sank 45 percent and hospitalizations were down 32 percent.
Pennsylvania is waiting for 70 percents of adults to be fully vaccinated before lifting its mask mandate. Only 37 percent have been immunized in Pennsylvania.
The mask requirement in Minnesota will be lifted once 70 percent of residents 16 and older have received at least one dose of a Covid-19 vaccine, but no later than July 1, Gov. Tim Walz said. Half of Minnesotans have had at least one dose.
On Wednesday, Maryland said that every business would be allowed to open, starting on Saturday, at 100 percent capacity, but that the indoor mask requirement would be in place until 70 percent of adults had received one dose. So far, only 52 percent have met that guideline.
“Those who are not vaccinated continue to slow our health and economic recovery efforts, and they also continue to be at risk for infection, hospitalization and death,” Gov. Larry Hogan said on Wednesday.
In New Jersey, Gov. Phil Murphy said on Wednesday that he would be signing an executive order that would put into effect what he called “our most aggressive reopening play” to date. As was announced last week, on Wednesday, May 19, many restrictions on public gatherings will be dropped although social distancing measures will be in effect. In New Jersey, 42 percent of adults are fully vaccinated and 55 percent have received one shot.
And in New Mexico, the state will remove most restrictions once 60 percent of residents have been fully vaccinated. Forty-two percent of people have been inoculated there.
But these statewide vaccination targets are well below what experts now calculate the herd immunity threshold to be: at least 80 percent.
President Biden has called for 70 percent of adults to have at least one dose by July 4. Jeffrey Zients, Mr. Biden’s Covid response coordinator, said that the goal should be to achieve some sense of normality by hitting that target. Reaching 70 percent will create “a pattern of decreasing cases, hospitalizations and deaths and take us down to a sustainable low level,” he said this week.
Gov. Ron DeSantis of Florida said on Wednesday that he would pardon “any Floridian” who violated mask or social distancing mandates.
Mr. DeSantis, a Republican, made the announcement during an appearance on the Fox News program “Ingraham Angle,” just a day before the Centers for Disease Control and Prevention shifted its guidelines to allow vaccinated people to skip wearing masks in most places.
The show’s host, Laura Ingraham, first interviewed Mike and Jillian Carnevale, the owners of a Broward County gym, who said they had been arrested for violating a county mask mandate. Mr. DeSantis then said their case was “a total overreach.”
Widely seen as positioning himself as a 2024 Republican presidential nominee, Mr. DeSantis throughout the pandemic has criticized coronavirus restrictions and mandates.
Mr. Carnevale said he and Ms. Carnevale were arrested three times after violating Broward County’s mask mandate. Mr. Carnevale was charged with two second-degree misdemeanors and if convicted would face a 120-day jail sentence, and Ms. Carnevale was charged with one second-degree misdemeanor, facing 60 days in jail, said Cory Strolla, a lawyer representing the couple.
Last month, Mr. DeSantis issued an executive order prohibiting businesses from requiring patrons or customers to show vaccination documentation, or risk losing grants or contracts funded by the state. Norwegian Cruise Line, which is requiring all guests and crew members to be vaccinated, said it was considering skipping Florida ports over the order.
Once Americans return to crowded offices, schools, buses and trains, so too will their sneezes and sniffles.
Having been introduced to the idea of wearing masks to protect themselves and others, some Americans are now considering a behavior scarcely seen in the United States but long a fixture in other cultures: routinely wearing a mask when displaying symptoms of a common cold or the flu, even in a future in which Covid-19 isn’t a primary concern.
Such routine use of masks has been common for decades in other countries, primarily in East Asia, as protection against allergies or pollution, or as a common courtesy to protect nearby people.
Leading American health officials have been divided over the benefits, partly because there is no tidy scientific consensus on the effect of masks on influenza virus transmission, according to experts who have studied it.
Nancy Leung, an epidemiologist at the University of Hong Kong, said that the science exploring possible links between masking and the emission or transmission of influenza viruses was nuanced — and that the nuances were often lost on the general public.
BUENOS AIRES — For most of the past year, Uruguay was held up as an example for keeping the coronavirus from spreading widely as neighboring countries grappled with soaring death tolls.
Uruguay’s good fortune has run out. In the last week, the small South American nation’s Covid-19 death rate per capita was the highest in the world, according to data compiled by The New York Times.
As of Wednesday, at least 3,252 people had died from Covid-19, according to the Uruguayan Health Ministry, and the daily death toll has been about 50 during the past week.
Six out of the 11 countries with the highest death rates per capita are in South America, a region where the pandemic is leaving a brutal toll of growing joblessness, poverty and hunger. For the most part, countries in the region have failed to acquire sufficient vaccines to inoculate their populations quickly.
Contagion rates in Uruguay began inching up in November and soared in recent months, apparently fueled by a highly contagious variant first identified in Brazil last year.
“In Uruguay, it’s as if we had two pandemics, one until November 2020, when things were largely under control, and the other starting in November, with the arrival of the first wave to the country,” said José Luis Satdjian, the deputy secretary of the Health Ministry.
The country with the second-highest death rate per capita is nearby Paraguay, which also had relative success in containing the virus for much of last year but now finds itself in a worsening crisis.
Experts link the sharp rise in cases in Uruguay to the P.1 virus variant detected in Brazil.
“We have a new player in the system and it’s the Brazilian variant, which has penetrated our country so aggressively,” Mr. Satdjian said.
Uruguay closed its borders tightly at the beginning of the pandemic, but towns along the border with Brazil are effectively binational and have remained porous.
The outbreak has strained hospitals in Uruguay, which has a population of 3.5 million.
On March 1, Uruguay had 76 Covid-19 patients in intensive care units. This week, medical professionals were caring for more than 530, according to Dr. Julio Pontet, president of the Uruguayan Society of Intensive Care Medicine who heads the intensive care department at the Pasteur Hospital in Montevideo, the capital.
That number is slightly lower than the peak in early May, but experts have yet to see a steady decline that could indicate a trend.
“It is still too early to reach the conclusion that we’ve already started to improve, we’re in a high plateau of cases,” Dr. Pontet said.
Despite the continuing high number of cases, there is optimism that the country will be able to get the situation under control soon because it is one of the few in the region that has been able to make quick progress on its vaccination campaign. About a quarter of the population has been fully immunized.
“We expect the number of serious cases to begin decreasing at the end of May,” Dr. Pontet said.
The Biden administration on Thursday outlined how it will spend $7 billion to expand the nation’s public health workforce, adding tens of thousands of jobs to respond to the Covid-19 pandemic and future outbreaks, including disease investigators, contact tracers and epidemiologists.
Over $4 billion will go to state and local health departments to help with their Covid-19 response, the White House said in a news release, allowing them to “quickly add staff.” Hiring would include vaccine and test administrators, data scientists, epidemiologists and school nurses who can work to vaccinate teens and children in the coming months. Some of the hiring will boost the ranks at the Epidemic Intelligence Service, the vaunted arm of the Centers for Disease Control and Prevention that investigates disease outbreaks.
“Though many threats have increased in complexity and scale in recent years, our nation’s public health workforce has gotten smaller,” Dr. Rochelle Walensky, the C.D.C. director, said at a White House news conference Thursday. “This support will immediately add more staff in health departments across the country.”
C.D.C. leaders have long complained of neglect and underfunding, saying that lawmakers typically only send more resources to the agency when there is a dire public health emergency. Other federal health agencies, particularly the National Institutes of Health, are significantly better funded. Many local health departments have also been short on funding for years.
State and local governments would be able to decide how they use the money, which was allocated through the American Rescue Plan, said Carole Johnson, the Biden administration’s testing coordinator.
The funding underscored a sharp contrast with the Trump administration, which routinely sought to cut off congressional funding for the C.D.C. and stifle its independence within the Department of Health and Human Services.
And it offered relief for local health departments that have been sapped by low morale, firings and harassment. One challenge, though, might be finding enough qualified people to fill new job openings.
Ms. Johnson said money could also go to increasing the number of “disease intervention specialists,” or health workers who would conduct contact tracing, work on case management and help with outbreak investigations. And $400 million would go to a new partnership between the C.D.C. and AmeriCorps, a sprawling national service organization. Called Public Health AmeriCorps, the program would form a “pipeline” for public health workers.
The administration was providing another $3 billion to a new C.D.C. grant program to help smaller local health departments keep staff. The grants would allow those hired to help with the coronavirus pandemic to “continue their careers beyond the pandemic as public health professionals,” the White House said.
“We really are asking grantees to prioritize recruiting from communities they serve and backgrounds that are underrepresented,” Ms. Johnson said.
As the vaccination campaign in Greece rapidly expands to reach hundreds of thousands of residents across dozens of islands dotting the Aegean Sea, the country planned to throw open its doors on Friday to more foreign visitors, including those have been vaccinated, have proof of previous infection or can provide a negative coronavirus test result.
With tourism accounting for a fifth of the country’s work force and around 20 percent of gross domestic product, the loosening of restrictions is an economic priority.
The move comes as the country gradually eases domestic restrictions.
Cafes and bars opened last week after a six-month shuttering, and primary and junior high schools reopened this week.
On Friday, residents will no longer have to complete a form or notify the authorities via text message to leave the house for work, shopping, visits to doctors or physical exercise, among other reasons.
Museums are scheduled to reopen, and the 11 p.m. curfew will be pushed back to 12.30 a.m.
Although the rate of daily coronavirus infections in Greece has stabilized in recent weeks, deaths and hospitalizations remain relatively high.
The U.S. State Department is currently warning against travel to Greece, and similar advice is in place in many other countries.
Greece’s vaccination drive has been slow compared with other European Union countries, but it has stepped up in recent weeks.
About 1.3 million people in the nation of 10 million have been fully vaccinated, and 2.6 million have received one of their two shots, according to the authorities.
Prime Minister Kyriakos Mitsotakis on Tuesday heralded a plan to vaccinate the permanent residents of the country’s islands by the end of June.
In a teleconference call with the mayors of several Greek islands, Mr. Mitsotakis called the campaign Operation Blue Freedom — a variation of the name of the national inoculation drive, Operation Freedom.
The residents of 32 small islands have been fully vaccinated, and a drive to inoculate those on another 36 islands with up to 10,000 residents is on course to be complete by the end of May.
The next stage aims to vaccinate more than 700,000 residents of 19 larger islands, including the popular vacation destinations of Corfu, Mykonos, Rhodes, Santorini and Zakynthos, by the end of June.
That drive is to begin later this month, using the first large delivery of the one-dose Johnson & Johnson vaccine. Mr. Mitsotakis appealed to the mayors to encourage islanders to get the shots as part of broader efforts to build Greece’s first “mass wall of immunity.”
A variant of the coronavirus is sweeping through Thailand’s prisons, the country’s chief prison doctor said on Thursday, as the government acknowledged that nearly 3,000 inmates had been found to be infected.
The chief prison doctor, Weerakit Harnpariphan, deputy director general of Thailand’s Department of Corrections, did not identify the variant that had been detected. But protective measures that were effective in the prisons last year, he said, are not working well now.
“The spread this time is something very worrying,” he said. “The transmissibility of this variant, as it is known, is very quick. It spread in a short period of time.”
There are two variants of concern spreading in the region: the first, detected last fall in Britain, is now the main driver of the pandemic in countries around the world.
Health officials in Thailand said it was now widespread in the country and was partly responsible for the recent surge in cases.
Scientists still don’t know much about that variant, but they are worried that it might be helping to fuel the rise in India’s coronavirus infections and could now be driving up cases in neighboring countries.
Called B.1.617, the variant has been detected in Thailand only in one family that had been quarantined after arriving from Pakistan, health officials said.
On Thursday, Thailand reported a daily record of 4,887 cases, which reflects the inclusion of 2,835 prison cases that had not been counted previously in the national total. Thailand has averaged about 2,000 new cases a day for the past three weeks.
The prison outbreak came to light on Wednesday after a leader of Thailand’s pro-democracy movement, Panusaya Sithijirawattanakul, 22, was released on bail and reported in a Facebook post that she had contracted the coronavirus. She said that more than 50 women had also come down with the virus at the prison where she had been held for nearly two months.
Justice Minister Somsak Thepsuthin said that the coronavirus was under control in the prisons but acknowledged that too few prisoners were being tested until this week.
In response to the virus, he said, the prison population has been reduced from 390,000 prisoners to less than 310,000 by granting amnesty to some and releasing others to be monitored with ankle bracelets.
Human Rights Watch called on Thailand to ensure that prisoners had adequate protective measures and health care. Nearly 20 percent of the country’s inmates are being held while they await trial, the group said, including other members of the pro-democracy movement who are accused of insulting the monarchy.
Thailand is facing its biggest surge in cases since the start of the pandemic and has imposed a partial lockdown on the hardest-hit parts of the country, including Bangkok.
The country reported only 6,884 cases and 61 deaths for all of last year. But the numbers have soared this year to a total of 93,794 cases and 518 deaths as of Thursday, with most of them coming in the past three weeks.
The world’s first mass coronavirus inoculation campaign for children kicked off in earnest in the United States on Thursday after the federal government recommended making the Pfizer-BioNTech vaccine available to those aged 12 to 15.
Even as the decision was embraced by millions of parents wearied by pandemic restrictions and desperate to get their children back into classrooms, states, counties and school districts around the country were trying to figure out the most reassuring and expedient ways to offer the shots.
The various authorities were making plans to offer vaccines not only in schools, but also at pediatricians’ offices, day camps, parks and even beaches.
President Biden, who hailed the vaccine as “safe, effective, easy, fast and free,” said that as many as 20,000 pharmacies stood ready to start giving shots on Thursday.
“This is one more giant step on our fight against the pandemic,” Mr. Biden said, after an advisory panel to the Centers for Disease Control and Prevention voted on Wednesday to recommend use of the vaccine.
Some states, including Delaware, Georgia and Maine, had already started to offer doses to children after the authorization of the vaccine by the Food and Drug Administration on Monday.
But the ruling by the C.D.C. was the final step in the federal process that allows for widespread inoculations of the roughly 17 million children in the United States ages 12-15.
For many parents, it could not come too soon. About one-third of eighth graders, usually 13 or 14 years old, are still in remote learning.
But the authorities must also overcome a significant amount of hesitancy. A recent survey by the Kaiser Family Foundation found that many parents — even some who eagerly got their own coronavirus shots — were reluctant to vaccinate pubescent children.
States have differing standards on what could be used to prove parental consent.
In Los Angeles, the health authorities require anyone younger than 18 to be accompanied by a parent, guardian or responsible adult and to present photo identification and verification of age, county officials said.
In Maine, a parent does not need to be with the child as long as the adult provides permission over the phone or signs a form beforehand.
Federal and local officials said that there should be no problem with supply meeting demand. The expansion of the U.S. vaccination effort underscored the widening gulf in the world’s inoculation campaigns even as the pandemic gathers force in several regions.
Referring to the global situation, Dr. Oliver Morgan, director of the risk assessment department at the W.H.O., said on Wednesday, “Throughout the month of March and April, there has been a steady increase in the number of cases each week and the weekly number of cases is now higher than any time in the pandemic.”
At the same time, many of the countries being walloped by the virus — and those where the threat of new outbreaks is growing — have not been able to secure vaccines to inoculate even health workers or those most at risk of serious illness and death.
Research shows that children are mostly spared severe disease and are not significant drivers of coronavirus spread, as they are for influenza, for example.
Young children are thought to spread the virus less often than adults do, but their ability to transmit increases with age. Teenagers may transmit the virus as readily as adults.
Vaccinating children is viewed as an important increase to the level of immunity in a population, driving down the number of cases broadly, while offering protection to more people.
While risk of severe illness in youngsters is low compared with that in adults, the coronavirus has infected more than 1.5 million children and sent more than 13,000 to hospitals, more than are hospitalized for flu in an average year, according to data collected by the C.D.C.
If you’ve enjoyed working from home during the pandemic — no commute, cooking lunch in your own kitchen or being around family more often — the chief executive of WeWork has some thoughts about you.
“Those who are least engaged are very comfortable working from home,” Sandeep Mathrani, the C.E.O. of WeWork said at a Wall Street Journal event on Wednesday. “Those who are überly engaged with the company want to go to the office two-thirds of the time, at least.”
“People are happier when they come to work,” he added. The company is betting on people wanting to — or being required to — work outside of their homes once it is safe to do so widely.
His comments were not received well by many online as many companies and employees consider the post-Covid-19 workplace after more than a year of doing their jobs from home.
“I wonder why the C.E.O. of a company that rents office space would say this,” wrote one Twitter user.
Others noted that working from home has benefited parents and has improved some workers’ mental health.
Ann Johnson, a corporate vice president at Microsoft, wrote: “If the only way you can keep your employees engaged is by being in the office with them, you have a leadership issue — not an employee engagement issue.”
Google said this month that it would relax its remote work protocols and that it expected 20 percent of its employees to work remotely after its offices reopen. The tech giant had previously been one of the industry’s holdouts on flexible remote work, and Insider reported that some employees had threatened to quit if they couldn’t keep working from home.