Serotypes of Pasteurella haemolytica in sheep in the midwestern United States.
Nasal secretions were collected from healthy lambs from flocks in Iowa and the surrounding states for 2 consecutive years. The 1st year, 322 lambs from 61 flocks yielded 202 Pasteurella haemolytica isolates, representing 9 established serotypes and 30 untypeable isolates. The 2nd year, 249 lambs from 49 flocks yielded 73 isolates, representing 9 established serotypes and 7 untypeable isolates. More isolates belonged to serotype 2 than to any other serotype. Serotypes 3, 4, and 10 (members of biotype T), were not isolated. Serotype 12 was also isolated and identified.
D000372:Agglutination Tests / Q000662:veterinary; D000818:Animals; D005260:Female; D007484:Iowa; D008297:Male; D009093:Mucus / Q000382:microbiology; D009297:Nasal Mucosa / Q000378:metabolism; D010325:Pasteurella / Q000145:classification*; D012703:Serotyping / Q000662:veterinary; D012756:Sheep / Q000382:microbiology*