The predicted risk of myocarditis associated with the third shot is acting like very low, the panelists said.

Those with waning antibodies will be more in need of a boosters.

Pfizer vaccine fridge

Tara Croser - Pool / Getty Images

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