The incidence of fever.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D005334:Fever / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008288:Malaria / Q000517:prevention & control; D008297:Male; D012621:Seasons; D012846:Singapore