title: Fever pitch. Why this year's flu strain hit so early and so hard.
authors: Alice
authors: A
authors: Park
mesh_terms: D006801:Humans; D053122:Influenza A Virus, H3N2 Subtype / Q000472:pathogenicity*; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D014481:United States / Q000453:epidemiology; D014774:Virulence