The predicted risk of myocarditis associated with the third shot is acting like very low, the panelists said.
Why Are Boosters Only Recommended for Certain Groups?
Those with waning antibodies will be more in need of a boosters.

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What About People Who Received a Moderna or Johnson & Johnson Vaccine?
The panelists said more data is needed before authorizing Moderna or Johnson & Johnson boosters.
For Johnson & Johnson, however, there is limited data on the effectiveness of a booster.
Johnson & Johnson released interim data in August saying that itsbooster shot could increase immunity nine-fold.
Moderna has also said that itshalf-dose booster could boost immune responses in vaccinated people.
I don’t want to jeopardize anyone, Long said.
The CDC will need to define who qualifies as high risk.
If you are in either groups, you will likely be eligible for a booster soon.
For the most recent updates on COVID-19, visit ourcoronavirus news page.
Centers for Disease Control and Prevention.Johnson & Johnsons Janssen COVID-19 Vaccine Overview and Safety.
Polinski JM, Weckstein AR, Batech M, et al.Effectiveness of the single-dose ad26.
Published online September 16, 2021. doi:10.1101/2021.09.10.21263385