Meningoencephalitis and other conditions associated with Histophilus ovis infection in sheep.
Histophilus ovis was isolated from 29 sheep in 20 flocks and 2 artificial insemination (AI) centres in southern New South Wales from 1984 to 1990. The clinical and pathological findings were consistent with previous reports and included polyarthritis (7 flocks), epididymo-orchitis (5), meningoencephalitis (3), pneumonia (3), septicaemia (2), mastitis (1) and metritis (1). Six sheep had meningoencephalitis, a syndrome not previously associated with H ovis infection in sheep, which was similar pathologically to thromboembolic meningoencephalitis in cattle, caused by the related organism, Haemophilus somnus. H ovis was isolated from the semen of 12-month-old rams in a flock that had polyarthritis due to H ovis, in 4-month-old ram lambs and from the uterus of a ewe in a flock that had sporadic cases of H ovis septicaemia.
Philbey
A W
AW
New South Wales Agriculture, Regional Veterinary Laboratory, Wagga.
Glastonbury
J R
JR
Rothwell
J T
JT
Links
I J
IJ
Searson
J E
JE
D000818:Animals; D001170:Arthritis, Infectious / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D016470:Bacteremia / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D001921:Brain / Q000382:microbiology / Q000473:pathology; D004196:Disease Outbreaks / Q000662:veterinary*; D004823:Epididymitis / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D005260:Female; D006090:Gram-Negative Bacteria / Q000145:classification / Q000302:isolation & purification*; D016905:Gram-Negative Bacterial Infections / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D008297:Male; D008413:Mastitis / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D008590:Meningoencephalitis / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D009517:New South Wales / Q000453:epidemiology; D009920:Orchitis / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D011014:Pneumonia / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000382:microbiology / Q000473:pathology