title: Yellow fever. Epidemic in Cameroon, 1990.
mesh_terms: D000293:Adolescent; D002163:Cameroon / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D006801:Humans; D007114:Immunization; D009548:Niger / Q000453:epidemiology; D009549:Nigeria / Q000453:epidemiology; D015004:Yellow Fever / Q000453:epidemiology* / Q000517:prevention & control