Yellow fever.
D000293:Adolescent; D000328:Adult; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007630:Kenya / Q000453:epidemiology; D008297:Male; D016019:Survival Analysis; D015004:Yellow Fever / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control