title: Influenza activity--United States, 2000-01 season.
abstract: This report summarizes influenza activity in the United States during October 1-November 25, 2000 (1). Influenza activity was low during this period, and influenza virus isolates were reported from 11 states. The viruses most frequently isolated were influenza A (H1N1) and were well matched by the 2000-01 influenza vaccine strain.
mesh_terms: D006801:Humans; D009980:Influenza A virus; D009981:Influenza B virus; D007251:Influenza, Human / Q000453:epidemiology*; D012621:Seasons; D014481:United States / Q000453:epidemiology