A member asked:

How long do it take the flu to be the flu for example if i tested for the flu one day and it was negative could i test positive the next day?

A doctor has provided 1 answer

Flu tests: Rapid flu tests become positive from beginning of symptoms to 3-5 days after. However, there many tests in the market and the ability to adequately detect the viruses varies.

Answered 2/25/2018

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