Influenza (Flu) Causes, Symptoms, Treatment, Vaccine and Types on MedicineNet.com
... commonly called "the flu," is an illness caused by viruses that infect the respiratory tract. ... cause lung infections in infants and children, and it ...
Influenza (Flu) Causes, Symptoms, Treatment, Vaccine and Types on MedicineNet.com
Thursday, February 21, 2008
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