Tick borne fever in in-bye sheep.
D000818:Animals; D004739:England; D012282:Rickettsia Infections / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013984:Tick Infestations / Q000453:epidemiology / Q000662:veterinary*