Haemonchosis in sheep during the dry season in the Nigerian savanna.
D000818:Animals; D006188:Haemonchiasis / Q000453:epidemiology / Q000662:veterinary*; D009549:Nigeria; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D014252:Trichostrongyloidiasis / Q000662:veterinary*