Newspaper & online reporters and analysts explore the cultural and news stories of the week, with photos frequently added by Esco20, and reveal their significance (with a slant towards Esco 20's opinions)
Showing posts with label OMICRON VACCINE. Show all posts
Showing posts with label OMICRON VACCINE. Show all posts
Wednesday, the FDA authorized emergency use of new Covid-19 booster shots, marking the first time the vaccines have been updated. [Science / Gretchen Vogel]
The Moderna and Pfizer/BioNTech boosters target the BA.4 and BA.5 omicron subvariants of the SARS-CoV-2 coronavirus, which are now responsible for almost 90 percent of US cases. [Reuters / Mrinalika Roy and Julie Steenhuysen]
The FDA authorized Pfizer/BioNTech’s booster for people 12 and older who completed their first vaccine series, while Moderna’s is approved for those 18 and older. The boosters should be taken at least two months after a previous dose. [NPR / Scott Hensley and Rob Stein]
The new jabs are part of the federal government’s effort to encourage the public to get boosted to avoid a fall surge as people spend more time indoors. [Washington Post / Laurie McGinley]
Because of time constraints, the booster effectiveness is based on animal studies and data from BA.1. It’s unclear exactly how well the vaccines will perform against BA.4 and BA.5; human trial data could be available in two months. [CNBC / Spencer Kimball]
The CDC is meeting this week to determine guidelines for administering booster shots. If approved, new doses could arrive next week. [Vox / Umair Irfan]
August 29, 2022
Biden Administration Plans for New Booster Campaign Soon After Labor Day
A top F.D.A. regulator cited compelling data for redesigned coronavirus vaccines from Pfizer-BioNTech and Moderna.
Assuming the redesigned doses clear regulatory hurdles, officials plan to offer the Pfizer shot to people 12 and older while limiting the Moderna shot to adults.Credit...Kenny Holston for The New York Times
WASHINGTON — The Biden administration plans to offer the next generation of coronavirus booster shots to Americans 12 and older soon after Labor Day, a campaign that federal officials hope will reduce deaths from Covid-19 and protect against an expected winter surge.
Dr. Peter Marks, the top vaccine regulator for the Food and Drug Administration, said in an interview on Tuesday that while he could not discuss timing, his team was close to authorizing updated doses that would target the versions of the virus now circulating.
This week, both Moderna and Pfizer-BioNTech finalized their submissions to the F.D.A. asking for emergency authorization of booster shots aimed at BA.5 and another subvariant of Omicron that together account for most coronavirus cases in the United States.
Federal health officials say they are eager to offer the updated boosters as quickly as possible, pointing to a death toll that now averages about 450 Americans per day and could rise in the coming months as people spend more time indoors.
“We have really got to do better to protect the American public,” Dr. Anthony S. Fauci, President Biden’s chief medical adviser, said in an interview on Tuesday. “We are in the middle of a BA.5 outbreak here, and we are nowhere near where we want to be.”
The Biden administration has struggled to convince Americans of the need for successive vaccinations. Only about two-thirds of the population has been inoculated with the primary series of two shots, and far fewer have received booster doses.
Some outside scientists have said the government is moving too fast to clear redesigned shots, arguing that the existing vaccines provide strong protection against severe disease.
"Deaths are concentrated in unvaccinated people and people with serious health conditions,” said John P. Moore, a virologist at Weill Cornell Medicine. He said the extra protection that the new shots would provide against infection could be “weak to nonexistent.”
Jeremy Kamil, a virologist at Louisiana State University Health Shreveport, said that although he supported new boosters, many people had immunity because of recent infections. “Even if we get this out in the next 10 days, how many people are left who haven’t gotten Omicron?” he said.
Other scientists said that the government’s plan made sense given how the virus had changed and the evidence that immunity wanes over time. Dr. Marks said that if regulators waited for additional data or recommendations from outside experts, the virus might evolve further and “we may have lost a bunch of individuals who could otherwise be sitting around at the dinner table together.”
The government plans to offer the new Pfizer booster to everyone 12 and older while limiting the new Moderna shot to adults. People who have already received the initial two-shot series of either vaccine would be eligible. So would those who have received the initial shots plus one or two booster shots. The new booster campaign could be broadened to younger children later.
Dr. Marks suggested that the biggest obstacle to the effort was the level of complacency that had set in, even as the pandemic continued to exact what he called an “unacceptable” death toll.
He said the F.D.A. might recommend that people who had recently received a Covid vaccine dose wait “a few months” before getting the new shot, even if they were otherwise eligible. He said the C.D.C. might weigh in on whether people who were recently infected with the virus should also wait.
The new shots combine the original vaccine with components aimed at the BA.4 and BA.5, Omicron’s recent subvariants. Officials argue that the new formulations will deliver a stronger boost to the immune system than the existing vaccines provide.
Unlike earlier shots, the redesigned formulations have not been tested widely on humans; instead, the companies have submitted data from mice trials. Some vaccine experts have complained that animal data is too preliminary and say regulators should wait for results of human clinical trials.
But Dr. Fauci said using animal data was “not anything different than we always do” in updating the flu vaccine each year. Dr. Marks said other evidence included the extensive track record with the existing vaccines and a series of earlier human trials with variant-specific formulations.
“I take great issue with those who say, ‘Oh, you’re just approving this with mouse data,’” he said. “We’re authorizing this with the totality of the evidence that we have."
moderna began human trials of its new vaccine this month, and Pfizer plans to do the same later in the month. Initial data from those trials is expected later this year.
Image
Federal regulators are reviewing applications from Moderna and Pfizer-BioNTech for emergency authorization of new booster shots that target Omicron subvariants now circulating.Credit...Kenny Holston for The New York TimeS
Dr. Moore, the virologist at Weill Cornell Medicine, said the administration’s plans could backfire if the fall or winter brings a wave of disease despite the new boosters, potentially reducing overall confidence in Covid-19 vaccines.
