title: Surveillance and impact of influenza in the United States.
authors.affiliation: Influenza Branch, G-16, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
authors.forename: A
authors.initials: A
authors.lastname: Klimov
authors.forename: L
authors.initials: L
authors.lastname: Simonsen
authors.forename: K
authors.initials: K
authors.lastname: Fukuda
authors.forename: N
authors.initials: N
authors.lastname: Cox
mesh_terms: D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000401:mortality; D009017:Morbidity / Q000639:trends; D018571:Sentinel Surveillance; D014481:United States / Q000453:epidemiology