A member asked:

If i get bivalent covid booster and then came down with a virus later the same day, will my immune response to bivalent covid booster be less since immune system is also fighting a cold?

2 doctors weighed in across 2 answers
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

If what you think happens, there won't be recommendation for taking 2 or 3 combined vaccinations at the same time such as DPT or taking covid vaccine and flu vaccine at the same time. Body immunologic response to a cold virus is not much different from reaction to a flu vaccine.

Answered 9/20/2022

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Dr. Hunter Handsfield answered

Specializes in Infectious Disease

Probably nothing at al, i.e. no effect on COVID booster effectiveness.

Answered 9/20/2022

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