Relief News

Health Alert Network (HAN) No. 374 - CDC Health Advisory Regarding the Potential for Circulation of Drifted Influenza A (H3N2) Viruses


December 03, 2014
Influenza activity is currently low in the United States as a whole, but is increasing in some parts of the country. This season, influenza A (H3N2) viruses have been reported most frequently and have been detected in almost all states. During past seasons when influenza A (H3N2) viruses have predominated, higher overall and age-specific hospitalization rates and more mortality have been observed, especially among older people, very young children, and persons with certain chronic medical conditions compared with seasons during which influenza A (H1N1) or influenza B viruses have predominated.
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