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結果 : how long is the flu contagious before symptoms appear
2:59

How Long Are You Contagious With The Flu?

NPR's Skunk Bear
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How Long Is the Flu Contagious? | How Long does the Flu Live on Surfaces?

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How long are individuals contagious with a cold or flu?

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2:34

How Long Are Cold, Flu Symptoms Contagious?

WCCO - CBS Minnesota
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2:46

Good Question: How Long Are We Contagious With Flu?

WCCO - CBS Minnesota
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3:02

Ask Dr. Nandi: If you're sick, how long are you contagious for?

WXYZ-TV Detroit | Channel 7
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0:48

How long are you contagious for when you have the flu or a cold?

Doctor On Demand
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2:09

How Long is the Flu Contagious? A Doctor Answers

Dr. Jen Caudle
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How Long Is The Flu Contagious

UK Care Guide
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Medical Moment: When are you no longer contagious after getting the flu, a cold, or COVID?

WNDU 16 News Now
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HOW LONG IS FLU CONTAGIOUS? How Long Do Symptoms Last? Should You Take Tamiflu? A Doc Discusses

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The flu virus spreads even before symptoms show

WWLP-22News
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1:14

How long is flu contagious?

Medical-Question
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0:12

風邪やインフルエンザ…やってはいけないこと！マンデル博士

motivationaldoc
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6:43

How to tell the flu from a cold

Global News
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How Long Does The Flu Last and How Long am I Contagious Elite Care Emergency Room - League City

Elitecare Emergency Hospital
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How long are you contagious when you have the flu ? | Better Health Channel

BEST HEALTH Answers
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How Long the Flu Is Contagious and How You Can Prevent Its Spread

b/60
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0:21

Can the flu be spread before symptoms appear?

Med Quizzes
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How Long are the Cold and Flu Contagious?

Theraflu US
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