MIAMI — The Omicron variant has turned a season of joy into one of weariness and resentment amid a new coronavirus surge.
With days to go before Christmas, Americans are sick and tired of being sick and tired. Of reworking plans to adapt to the latest virus risks. Of searching for at-home tests and not finding them. Of wondering whether, after two years of avoiding Covid-19, or surviving it, or getting vaccinated and maybe even boosted, Omicron is the variant they inevitably catch.
A sense of dread about Omicron’s rapid spread — the fastest of any variant yet — has swept through the Northeast and Upper Midwest, which were already swamped with Delta variant cases and hospitalizations. And unease has burgeoned even in states and territories like Florida, Hawaii and Puerto Rico that had moved past a terrible summer of Delta and, until recently, experienced a relative virus lull.
“I’m mad,” said Mabel De Beunza, a publicist in her early 40s who spent 90 minutes at a drive-through testing line in downtown Miami on Monday after experiencing cold symptoms. No matter what her test result, she has decided against seeing her mother, who is immunocompromised, on Christmas.
“We’ve done so much, and still have this,” said Ms. De Beunza, whose family is vaccinated and boosted. “It’s been such a rough year.”
On Tuesday, President Biden took new action to combat the surge, pledging to deploy 1,000 military medical professionals to hospitals, open new testing and vaccination sites and distribute 500 million rapid tests to the public for free. Some state officials have also imposed new vaccination and mask requirements.
“I know you’re tired,” Mr. Biden said from the White House. “I know you’re frustrated.”
He emphasized that the tools available to prevent, diagnose and treat Covid are much more plentiful now than they were in the earliest days of the pandemic. “We should all be concerned about Omicron but not panicked,” he said. “This is not March of 2020.”
Conversations with more than two dozen people across the country revealed that, more than panicked, Americans are simply exhausted by the emotional pandemic roller coaster and confused by mixed messages from experts and leaders about appropriate precautions.
Alyssa Dipirro, 30, was waiting in line for a Covid test in Orlando, Fla., on Tuesday but had not been vaccinated. Earlier in the pandemic, she did not want to do so while pregnant, despite assurances from public health experts that the shots were safe for pregnant women.
Since then, she has not been reassured by reports of vaccinated people getting Covid infections, as is happening more frequently with Omicron, even though the vaccines remain effective at warding off severe disease. “They still have to get tested if they get exposed,” she said. “So what’s the point of this?”
Florida, which long ago did away with almost all virus restrictions, is recording an average of 7,068 daily coronavirus cases, a 294 percent increase over the past two weeks, according to data compiled by The New York Times.
The rise was sudden and jarring after a couple of months of relative virus quiet that followed a Delta surge that killed more than 22,000 Floridians, more than any previous virus wave, according to Jason L. Salemi, an epidemiologist at the University of South Florida.
But winter is Florida’s high season, drawing part-time residents and throngs of visitors. Some attendees reported testing positive for Covid this month after going to events related to the Art Basel Miami Beach fair.
On Tuesday, CDR Health, a contractor providing monoclonal antibody treatments at some state-run clinics, temporarily closed its sites in Miami-Dade, Broward, Lee and St. Lucie Counties because of a lack of supply. The Florida Department of Health insisted that some sites closed for training but acknowledged that some appointments had to be rescheduled and that the state was trying to secure a resupply.
“All my friends in Miami have Covid right now,” Fabiana Vegas, 21, said on Tuesday as she waited in line to get tested in Orlando. “I wanted to go to Miami this Christmas, and I can’t.”
Cases have also skyrocketed in Hawaii, with the state reporting a daily average that is 468 percent higher than it was two weeks ago, according to data from The Times.
Hilton R. Raethel, president of the Healthcare Association of Hawaii, called the increase dramatic and blamed pandemic fatigue for the low rates of booster shots among residents. About 17 percent of fully vaccinated residents had received a booster as of Sunday, the second-lowest rate in the country.
“‘I’ve done so much for so long, I’m sort of reluctant to do any more,’” Mr. Raethel said, summarizing public sentiment.
Nowhere has there been a larger explosion of cases than in Puerto Rico, which has recorded a daily average of 1,098 — a 762 percent increase from two weeks ago, according to data from The Times. The island has reported more cases in the past seven days than any other week in the pandemic, prompting Gov. Pedro R. Pierluisi to authorize new restrictions, including requiring vaccinations and negative tests for large events.
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Marisa Gómez Cuevas, 34, tested positive after going out to a bar in Old San Juan to meet friends that she had not seen in months. A few days later, she started getting calls from some of those friends, saying they felt sick. One ended up in a hospital.
She lost a gig she had with a theater production last week, and is scared to return to her waitressing job.
“I worry there will be another outbreak, and it will have to close again,” she said of the small family-owned restaurant where she works.
In other parts of the country that have been suffering from high caseloads for longer, restrictions have offered residents some peace of mind. Boston mandated proof of vaccines in restaurants and other indoor spaces on Monday, giving some relief to Christopher Glionna, the managing partner at the Aquitaine Group, which owns several eateries in the city’s South End.
“It is good for business,” he said. “People want to get together.”
And many people said they intended to keep their holiday travel plans, regardless of the news about Omicron. At a train station in Providence, R.I., on Monday, Sheryl Leary, 51, and her husband, Sean Leary, 53, prepared to leave for New York. The Rockettes concert they had tickets for was canceled, but they were still on to see “Wicked” on Broadway. Both Learys are vaccinated.
“We don’t want to have Covid or give it to anyone,” Ms. Leary said. But, her husband added, those concerns were not enough to scrap their trip.
“It’s part of life,” Mr. Leary said of the virus. “What are you going to do, stay home?”
Still, in states that have not yet experienced the latest virus surge, some people are already on edge.
In Berkeley, Calif., Brian Edwards-Tiekert, 43, a public radio host, and his wife changed their Covid protocols this week after realizing how fast Omicron was spreading.
“We’re not going to see anyone without testing,” he said. “And we’re upgrading from cloth masks to N95s or the equivalent.”
His wife ran out to pharmacies in search of at-home rapid tests and found only three — enough to use before a dinner they have planned for Wednesday, but not to prepare for another social engagement on Thursday.
The emotional whiplash inherent in all the worry and planning is draining, Mr. Edwards-Tiekert said, describing two tabs permanently open on his web browser: the California rain forecast and a Covid tracking dashboard.
“I guess I’m a little bit numbed at this point,” he said.
Reporting was contributed by Eric Adelson in Orlando, Fla.; Colleen Cronin in Providence, R.I.; Shawn Hubler in Sacramento; Sophie Kasakove in New York; Laura Moscoso in San Juan, P.R.; and Beth Treffeisen and Catherine McGloin in Boston.