Epidemiology of echinococcosis.
D000293:Adolescent; D000328:Adult; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology; D002648:Child; D004196:Disease Outbreaks; D004283:Dog Diseases / Q000453:epidemiology; D004285:Dogs; D004443:Echinococcosis / Q000453:epidemiology* / Q000662:veterinary; D005260:Female; D006801:Humans; D008297:Male