title: Update: influenza activity--United States, September 30, 2007-February 9, 2008.
abstract: This report summarizes U.S. influenza activity since the beginning of the 2007-08 influenza season (September 30, 2007) and updates the previous summary. From September through early December, influenza activity remained low in the United States. Activity increased from early December through the end of the year and has continued to increase in January and February.
mesh_terms: D000998:Antiviral Agents / Q000494:pharmacology; D004196:Disease Outbreaks; D024882:Drug Resistance, Viral; D006801:Humans; D009980:Influenza A virus / Q000187:drug effects / Q000302:isolation & purification*; D009981:Influenza B virus / Q000187:drug effects / Q000302:isolation & purification*; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology; D011159:Population Surveillance; D014481:United States / Q000453:epidemiology
chemical_list: D000998:Antiviral Agents