Author Topic: Pfizer to ask FDA to authorize booster dose of COVID vaccine as Delta variant spreads  (Read 1158 times)

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Offline libertybele

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OK....so now a 3rd jab is needed.  And will another jab be needed for the next variant?

Pfizer to ask FDA to authorize booster dose of COVID vaccine as Delta variant spreads

Pfizer Inc (PFE.N) plans to ask U.S. regulators to authorize a booster dose of its COVID-19 vaccine within the next month, the drugmaker's top scientist said on Thursday, based on evidence of greater risk of reinfection six months after inoculation and due to the spread of the highly contagious Delta variant.

Pfizer Chief Scientific Officer Mikael Dolsten said the recently reported dip in the vaccine's effectiveness in Israel was mostly due to infections in people who had been vaccinated in January or February. The country's health ministry said vaccine effectiveness in preventing both infection and symptomatic disease fell to 64% in June.

"The Pfizer vaccine is highly active against the Delta variant," Dolsten said in an interview. But after six months, he said, "there likely is the risk of reinfection as antibodies, as predicted, wane."....

https://www.reuters.com/business/healthcare-pharmaceuticals/pfizer-ask-fda-authorize-booster-dose-covid-vaccine-delta-variant-spreads-2021-07-08/
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Offline RetBobbyMI

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If, as it has been touted, is so highly effective, why do they need a booster or some other follow-on concoction?

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Offline corbe

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Offline PeteS in CA

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From https://www.nbcboston.com/news/local/pfizer-moderna-jj-vaccines-efficacy-as-delta-variant-concerns-rise/2419162/ :

Quote
Researchers in England studied how effective the two-dose AstraZeneca and Pfizer-BioNTech vaccines were against it, compared with the Alpha variant that was first detected in the U.K.

The vaccines were protective for those who got both doses but were less so among those who got one dose.

One recent study showed the Pfizer vaccine was 84% effective against the variant after two doses, but only 34% effective after the first dose.

Pfizer started testing use of a third, smaller dose, of their vaccine back in February, when effectiveness against variants was less well known, https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-initiate-study-part-broad-development . As things stand, the effectiveness of the standard two-dose regimen is still more effective than the J&J vaccine. I see no reason for me to get the booster. As for FDA authorizing a third dose, :shrug: . It's a don't-care for me.

Moderna also has an improved version of their vaccine in testing, https://investors.modernatx.com/news-releases/news-release-details/first-participants-dosed-phase-1-study-evaluating-mrna-1283 , and a booster, https://investors.modernatx.com/news-releases/news-release-details/moderna-announces-first-participants-dosed-study-evaluating , but their original vaccine is known to be effective against the various variants, https://investors.modernatx.com/news-releases/news-release-details/moderna-provides-clinical-update-neutralizing-activity-its-covid . So if a family member who received the Moderna vaccine asks about a booster I'll say that it does not appear to be necessary.

Fixed a typo
« Last Edit: July 09, 2021, 12:40:06 am by PeteS in CA »
If, as anti-Covid-vaxxers claim, https://www.poynter.org/fact-checking/2021/robert-f-kennedy-jr-said-the-covid-19-vaccine-is-the-deadliest-vaccine-ever-made-thats-not-true/ , https://gospelnewsnetwork.org/2021/11/23/covid-shots-are-the-deadliest-vaccines-in-medical-history/ , The Vaccine is deadly, where in the US have Pfizer and Moderna hidden the millions of bodies of those who died of "vaccine injury"? Is reality a Big Pharma Shill?

Millions now living should have died. Anti-Covid-Vaxxer ghouls hardest hit.

Offline Kamaji

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From https://www.nbcboston.com/news/local/pfizer-moderna-jj-vaccines-efficacy-as-delta-variant-concerns-rise/2419162/ :

Pfizer started testing use of a third, smaller dose, of their vaccine back in February, when effectiveness of variants was less well known, https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-initiate-study-part-broad-development . As things stand, the effectiveness of the standard two-dose regimen is still more effective than the J&J vaccine. I see no reason for me to get the booster. As for FDA authorizing a third dose, :shrug: . It's a don't-care for me.

Moderna also has an improved version of their vaccine in testing, https://investors.modernatx.com/news-releases/news-release-details/first-participants-dosed-phase-1-study-evaluating-mrna-1283 , and a booster, https://investors.modernatx.com/news-releases/news-release-details/moderna-announces-first-participants-dosed-study-evaluating , but their original vaccine is known to be effective against the various variants, https://investors.modernatx.com/news-releases/news-release-details/moderna-provides-clinical-update-neutralizing-activity-its-covid . So if a family member who received the Moderna vaccine asks about a booster I'll say that it does not appear to be necessary.

Good to know, thanks.  I got the Moderna vaccination back in April.

Offline PeteS in CA

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If, as anti-Covid-vaxxers claim, https://www.poynter.org/fact-checking/2021/robert-f-kennedy-jr-said-the-covid-19-vaccine-is-the-deadliest-vaccine-ever-made-thats-not-true/ , https://gospelnewsnetwork.org/2021/11/23/covid-shots-are-the-deadliest-vaccines-in-medical-history/ , The Vaccine is deadly, where in the US have Pfizer and Moderna hidden the millions of bodies of those who died of "vaccine injury"? Is reality a Big Pharma Shill?

Millions now living should have died. Anti-Covid-Vaxxer ghouls hardest hit.

Online mystery-ak

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Pfizer to brief US health officials on coronavirus booster shot: report
« Reply #6 on: July 11, 2021, 02:51:08 am »
Pfizer to brief US health officials on coronavirus booster shot: report
By Celine Castronuovo - 07/10/21 10:27 PM EDT

Pfizer is expected to brief U.S. health officials on the need for a COVID-19 booster shot in the upcoming days, several sources told The Washington Post.

News of the reported briefing comes after government agencies pushed back on the vaccine manufacturer’s announcement this week that it was seeking authorization for a third dose of its coronavirus vaccination. 

Pfizer and six people familiar with the plans confirmed to the newspaper that a meeting could likely take place on Monday. The meeting is expected to be similar to a briefing the company gave to European officials last week on a potential booster shot. 

The people familiar with the matter, who spoke to the Post on the condition of anonymity, said those invited to the planned briefing include White House chief medical adviser Anthony Fauci, National Institutes of Health (NIH) Director Francis Collins and Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky.

Janet Woodcock, acting commissioner for the Food and Drug Administration (FDA), chief COVID-19 science officer David Kessler and the surgeon general, Vivek Murthy, have also been invited, according to the Post.

A Pfizer spokesperson confirmed the meeting to the Post, but the representative did not provide additional information.

more
https://thehill.com/policy/healthcare/562421-pfizer-to-brief-us-health-officials-on-booster-shot-report
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