Chikungunya disease.
D001102:Arbovirus Infections / Q000453:epidemiology*; D001168:Arthritis / Q000209:etiology; D002646:Chikungunya virus / Q000302:isolation & purification; D005334:Fever / Q000209:etiology*; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008297:Male; D008887:Military Medicine; D014744:Vietnam; D014776:Virus Cultivation