J&J vaccine news!!! Second booster shot 94% effective. Looks like this might happen.
Last edited Tue Sep 21, 2021, 07:28 AM - Edit history (1)
For those of us who got the J&J vaccine much of the news omits mention of it.
Lots of info here.
Two dose version of Johnson & Johnson shot 94% effective against Covid-19, study finds
https://www.cnn.com/2021/09/21/health/johnson-vaccine-two-doses-booster/index.html
The company's ongoing Phase 2 trial of a two-dose regimen showed giving two doses 56 days apart provided 100% protection against severe Covid-19 and 94% protection against moderate to severe Covid-19 in the United States. Globally, the two-dose regimen provided 75% protection against moderate-to-severe Covid-19, the company said.
Moderna's vaccine is the most effective, but Pfizer and J&J also protect well, CDC-led study says
A second study showed people given a booster shot six months or longer after their first dose had a 12-fold increase in antibodies -- compared to a four-fold increase for people who got a second dose at two months. So protection should be stronger if people get boosters later, Dr. Dan Barouch, head of Beth Israel Deaconess' Center for Virology and Vaccine Research, told CNN.
"If you wait longer and have boost at six months or later then you likely will have better boost," said Barouch.
More info
Data on the J&J vaccine has come later than data about the Moderna and Pfizer/BioNTech vaccines because J&J's was authorized around two months later. Johnson & Johnson has said it will submit all of this data to the FDA for potential consideration for adding a booster dose, and perhaps for consideration to authorize a two-dose regimen.
"I think the single dose vaccine is a reasonable option for people and for countries that want a simple and convenient vaccine that can be administered quickly," he added.
"For outstanding protection, then a second shot can be given at any time between two months and eight months -- and the longer you wait, the better."
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