Update: Influenza activity--United States, January 22-28, 2006.
During January 22-28, 2006, the number of states reporting widespread influenza activity remained at five. Twenty-one states reported regional activity, 13 reported local activity, and 11 reported sporadic activity.
D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology