Последние добавленные видео:
Flu
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6 years ago
1286858 6 years ago 3:26Flu Virus 101 | National Geographic
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6 years ago
126018 6 years ago 1:02Cold or Flu?
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6 years ago
1788084 6 years ago 6:43How to tell the flu from a cold
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15 years ago
9580943 15 years ago 3:39Flu Attack! How A Virus Invades Your Body | Krulwich Wonders | NPR
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1 year ago
44204 1 year ago 5:39Understanding Influenza - The Flu
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1 year ago
967229 1 year ago 2:05:49How to Prevent & Treat Colds & Flu
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1 day ago
364 1 day ago 2:10Community rallies to support family of Waverly student lost to flu complications
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4 years ago
177750 4 years ago 8:06Influenza (The Flu)
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6 years ago
289430 6 years ago 4:38The flu vaccine: explained
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7 years ago
245603 7 years ago 2:59How Long Are You Contagious With The Flu?
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6 years ago
5987879 6 years ago 11:03Spanish Flu: a warning from history
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2 months ago
579650 2 months ago 7:45Is it time to worry about bird flu?
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3 years ago
107552 3 years ago 2:40What is influenza?
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6 years ago
401779 6 years ago 1:321918 Flu Pandemic
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5 years ago
165329 5 years ago 1:01What Should You Do If You Get Flu?
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1 month ago
903815 1 month ago 39:01Bird Flu is Here
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8 years ago
706665 8 years ago 4:16Colds, the Flu, and You