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Written by the OrganizedWisdom Team with as the reviewer. All original content is supervised by the The OrganizedWisdom Medical Review Team

abcnews.go.com

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The tricky thing about flu viruses and viruses in general, you yourself can actually be contagious a whole day prior to developing symptoms. And you can be contagious up to five days once you've developed symptoms.

« Back to the How Long Is the Flu Contagious WisdomCard

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