How long after getting the H1N1 vaccine until it's effective?


Rate This Answer

H1N1 Vaccine The H1N1 vaccine starts taking affect within 48 hours after being administered. You should also be given a second round of the vaccine within 21 days of the first for the full affect. ChaCha!

Answered -

Galleries

See All Galleries »

The Worst Rules of Beer Pong

The Worst Rules of Beer Pong

Viewed 1,925 times

Healthiest Snacks

Healthiest Snacks

Viewed 882 times

Comments

Advertisement