Bloomberg Law
Nov. 18, 2021, 8:55 PM

Current Boosters—Not Delta-Targeted Ones—Called Best Bet for Now

Jeannie Baumann
Jeannie Baumann

Tailoring Covid-19 booster shots to work against variants such as delta would offer less overall protection from the virus than using an additional dose of the original shot, an NIH immunologist whose work was critical to the vaccine developed by Moderna Inc., said.

Studies have indicated that boosting with the original vaccine increases the response and neutralizing activity against all the variants, Barney S. Graham, a top immunologist at the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, said Thursday at the American Society of Tropical Medicine and Hygiene’s annual meeting.

“Boosting with ...

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