結果 : how long is a cold contagious after symptoms show
1:03

How long are individuals contagious with a cold or flu?

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How Long Does It Take to Get a Cold After Exposure to the Virus?

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Good Question: How Long Are We Contagious With Flu?

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How long am I contagious with a cold?

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WATCH: How long do cold and flu viruses stay contagious on surfaces?

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VERIFY: How long are your coworkers contagious with the flu?

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