Update on Lassa fever in West Africa.
D000293:Adolescent; D000354:Africa, Western / Q000453:epidemiology; D000818:Animals; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000453:epidemiology / Q000635:transmission; D005260:Female; D006801:Humans; D007223:Infant; D007835:Lassa Fever / Q000453:epidemiology* / Q000635:transmission; D008297:Male; D016485:Needle Sharing / Q000009:adverse effects; D012377:Rodentia