MRS.LS
MRS.LS asks:
Q:

How long does it take for the H1N1 vaccine to become effective after you get it?

In Topics: H1N1 Flu (Swine Flu)
> 60 days ago

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Expert

Peter_Wenger
Oct 20, 2009
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What the Expert Says:

Ms. Brown is correct, studies demonstrate a robust immune response to the pandemic H1N1 vaccine in approximately 10 days up to 2 weeks.

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Additional Answers (1)

oliviabrown
oliviabrown writes:
the H1N1 vaccine creates a strong immune response in most healthy adults 8 to 10 days after a single dose.
> 60 days ago

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