Flu Can Infect Many People Without Causing Symptoms, The Lancet Respiratory Medicine Reveals
SUNDAY, March 16, 2014 (HealthDay News) -- Think you know who has the flu? Think again: a new study finds that three-quarters of people infected with seasonal flu and swine flu in recent years showed no symptoms.
Researchers analyzed data gathered in England during the winter flu seasons between 2006 and 2011, including the 2009 H1N1 "swine flu" pandemic.
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