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My Friends Have Just Returned From A Trip Out Of State. How Long Does It Take For Swine Flu Symptoms To Show?

Question: My friends have just returned from a trip out of state. How long does it take for swine flu symptoms to show?

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Answer: Well you know, it's very interesting that you mention out of state, because this swine flu virus is now in every state, but given your question, it usually takes 48-72 hours after you've been exposed to the virus for you to become sick, and so that's what we call the incubation period.

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