Flu's worst season.
Boyce
Nell
N
D005814:Genes, Viral; D049673:History, 20th Century; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000266:history* / Q000821:virology; D009975:Orthomyxoviridae / Q000235:genetics* / Q000472:pathogenicity; D014774:Virulence / Q000235:genetics