The epizootiology of haemonchosis in sheep.
D000818:Animals; D001315:Australia; D005243:Feces / Q000382:microbiology; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013696:Temperature; D014252:Trichostrongyloidiasis / Q000453:epidemiology / Q000662:veterinary*; D014887:Weather