Second COVID booster shot does little to stop Omicron, study finds
2 years, 9 months ago

Second COVID booster shot does little to stop Omicron, study finds

LA Times  

Dr. Jacov Lavee receives a fourth dose of the Comirnaty vaccine in Ramat Gan, Israel, as part of a trial to test whether a second COVID-19 booster shot helps protect against infection and illness. Compared to getting two initial doses and one booster shot of Pfizer and BioNTech’s Comirnaty vaccine, adding a second booster shot reduced the rate of coronavirus infection by just 30%. Using Spikevax, Moderna’s COVID-19 vaccine, as a second booster shot was even less effective at preventing coronavirus infections in this group of younger, generally healthy Israelis. Pfizer’s FDA application also included results of an unspecified clinical trial in which it offered a second booster shot to Israeli healthcare workers who wanted it.

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