Further studies on the epizootiology of nematode parasites of sheep in the Karoo.
D000818:Animals; D009349:Nematode Infections / Q000453:epidemiology / Q000662:veterinary*; D009814:Oesophagostomiasis / Q000453:epidemiology / Q000662:veterinary; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D013019:South Africa; D013696:Temperature; D014252:Trichostrongyloidiasis / Q000453:epidemiology / Q000662:veterinary; D014887:Weather