...state mirrored the national trend with influenza A - the 2009 H1N1 and H1N3 viruses - prevalent early in the season and influenza B activity increasing later in the season, according to the Alaska Section of Epidemiology. The Center for Disease Control...
...test done at health clinics and hospitals can identify suspect flu viruses as influenza A and influenza B. Influenza A includes H1N1 and influenza B includes seasonal flu, the strain of flu that commonly hits the United States each winter. Confirmation...
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