Population Trends · 1990 · 59 citations · 0 references
Public HealthInfectious Disease ControlInfectious DiseasesEpidemiologyInfectious Disease EpidemiologyPublic Health SurveillanceInfectious Disease SurveillanceInfluenza-like Illness SurveillanceMorbidity SurveillanceMortality SurveillanceEpidemic Mortality AnalysisPandemic Influenza SurveillanceSeasonal Influenza Surveillance