title: Experimental virus pneumonia in lambs.
mesh_terms: D000818:Animals; D006385:Hemagglutination Inhibition Tests; D009976:Orthomyxoviridae Infections / Q000473:pathology / Q000662:veterinary*; D011024:Pneumonia, Viral / Q000473:pathology / Q000662:veterinary*; D018108:Respirovirus; D012756:Sheep; D012757:Sheep Diseases / Q000473:pathology