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The U.S. gave the final go-ahead Friday to the nation’s first COVID-19 vaccine, marking what could be the beginning of the end of an outbreak that has killed nearly 300,000 Americans.

Shots for health workers and nursing home residents are expected to begin in the coming days after the Food and Drug Administration authorized an emergency rollout of what promises to be a strongly protective vaccine from Pfizer Inc. and its German partner BioNTech.

Initial doses are scarce and rationed as the U.S. joins Britain and several other countries in scrambling to vaccinate as many people as possible ahead of a long, grim winter. It will take months of work to tamp down the coronavirus that has surged to catastrophic levels in recent weeks and already claimed 1.5 million lives globally.

While the FDA decision came only after public review of data from a huge ongoing study, it has also been dogged by intense political pressure from the Trump administration, which has accused the agency of being too slow and even threatened to remove FDA chief Stephen Hahn if a ruling did not come Friday.

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The move sets off what will be the largest vaccination campaign in U.S. history — but it also has global ramifications because it’s a role model to many other countries facing the same decision.

It offers the ability “in this situation where the pandemic is out of control, to bring hope to the people,” Dr. Ugur Sahin, CEO of BioNTech, told The Associated Press.

The world desperately needs multiple vaccines for enough to go around, and the Pfizer-BioNTech shot is the first based on rigorous scientific testing to emerge from that worldwide race — a record-setting scientific achievement that shaved years off the usual process.

“I don’t think you would have found a scientist on this planet that would have predicted this 11 months ago,” said Dr. Paul Offit, a vaccine expert at Children’s Hospital of Philadelphia who advises the FDA.

The U.S. is considering a second vaccine, made by Moderna Inc., that could roll out in another week. In early January, Johnson & Johnson expects to learn if its vaccine is working in final testing.

Europe is set to make its own decision on the Pfizer-BioNTech and Moderna shots later this month, an important step as some other candidates that multiple countries were anxiously awaiting have hit roadblocks. Friday, Sanofi and GSK announced a months-long delay after early tests showed their vaccine didn’t work well enough in older adults.

And China and Russia didn’t wait for final-stage tests before beginning vaccinations with some homegrown shots.

President Donald Trump said late Friday that Pfizer had “passed the gold standard of safety,” in a video statement hailing the vaccine as “one of the greatest scientific accomplishments in history.”

About 3 million doses of the vaccine are expected in the first shipments around the country, according to officials with Operation Warp Speed, the Trump administration’s vaccine development program. A similar amount is to be held in reserve for those recipients' second dose.

The government still is hammering out final recommendations, but expected to follow health workers and nursing homes are other essential workers, older adults and people at high risk because of other health problems. U.S. authorities don’t expect enough for the general population before spring, and that's assuming there are no manufacturing glitches.

“We would need at least until March, April, to have an impact on the pandemic,” Sahin said. But he predicted that protecting the most vulnerable could start putting a dent in hospitals and deaths sooner.

In a still unfinished study of nearly 44,000 people, the FDA found the vaccine was safe and more than 90 percent effective across recipients of different ages, including older adults, races and those with health problems that put them at high risk from the coronavirus. It's authorized for people age 16 and up.

Emergency use means the vaccine still is experimental. Most important for would-be recipients to know:

If emergency use of Moderna's vaccine also is authorized, the U.S. expects to vaccinate 20 million people by the end of December. They hope to have enough for another 30 million people in January and 50 million in February.

Getting shots into arms is the big challenge, especially as 

from The Associated Press-NORC Center for Public Affairs Research found only half of Americans want the vaccine when it’s their turn. About a quarter say they won’t get it and the rest aren’t sure.

Political interference has complicated health authorities’ message that the testing was rigorous and cut no corners.

President Donald Trump bashed the FDA, again, Friday for taking too long, complaining that the agency “is still a big, old slow turtle.” One of his deputies even pressed Hahn to clear the shots by the end of the day or face possible firing, two administration officials said.

The FDA is unique in analyzing drugmakers’ raw data, a process that takes longer than many other countries’ regulatory reviews. In addition, the FDA insisted that large COVID-19 vaccine studies track at least half the participants for two months to look for side effects, a time period when historically any vaccine problems appear.

Health

COVID-19

The Associated Press

Author

The FDA called the vaccine from Pfizer and its German partner BioNTech safe and strongly protective. But initial doses are scarce and rationed, with health workers and nursing home residents first in line. Enough for the general population isn't expected until spring. 

U.S. allows emergency COVID-19 vaccine in bid to end pandemic

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