Meningoencephalitis and other conditions associated with Histophilus ovis infection in sheep

A W Philbey, J R Glastonbury, J T Rothwell, I J Links, J E Searson

Research output: Contribution to journalArticlepeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)387-90
Number of pages4
JournalAustralian veterinary journal
Volume68
Issue number12
Publication statusPublished - 1991

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