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Can you pass the flu before you even know that you have it?

Answer:

Yes, the flu virus, like many viruses can be in your cells and infecting you making you contagious, before you have symptoms to know you even have a viral infection/the flu. It is usually for 1-3 days before you have symptoms that you might already be infected. See the related question below for more information about the incubation of flu viruses.

First answer by D4est. Last edit by D4est. Contributor trust: 1251 [recommend contributor ]. Question popularity: 3 [recommend question].

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