Case definition for influenza surveillance.
Hannoun
C
C
chann@club-internet.fr
D003937:Diagnosis, Differential; D005060:Europe / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007251:Influenza, Human / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D018571:Sentinel Surveillance