[Occurence of fleas in a sheep pen].
D000818:Animals; D004478:Ectoparasitic Infestations / Q000453:epidemiology / Q000662:veterinary*; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D005423:Siphonaptera
Flohvorkommen in einem Schafstall.