The pathogenesis of a single challenge dose of Haemonchus contortus in lambs under six months of age.
D000018:Abomasum / Q000469:parasitology / Q000473:pathology; D000818:Animals; D005260:Female; D006188:Haemonchiasis / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*; D006189:Haemonchus / Q000254:growth & development / Q000472:pathogenicity*; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology / Q000473:pathology*; D014251:Trichostrongyloidea / Q000472:pathogenicity*; D014252:Trichostrongyloidiasis / Q000662:veterinary*