Bovine abortion caused by infection withLeptospira pomona

Review of Diagnostic Procedures and Approaches to Infectious Causes of Reproductive Failures of Cattle in Australia and New Zealand

“…In Queensland and Victoria, L. interrogans has been associated with reproductive disease ( 113 , 114 ). In New Zealand, the first case of bovine abortion associated with leptospirosis was diagnosed in 1953 ( 115 ), and fetal losses due to leptospirosis in beef cattle are recorded at 4.7% from L. borgpetersenii serovar Hardjo and 3.6% from L. interrogans serovar Pomona ( 27 ). Mild interstitial nephritis may be seen in the aborted fetus.…”

Serological survey for leptospires of agricultural importance in common wombats (Vombatus ursinus)

“…Sheep, horses, goats and pigs have been reported as accidental hosts (Bahaman and others 1980, Hathaway and others 1983). The maintenance hosts for L interrogans serovar Pomona infection is the pig, and accidental infection has been reported in human beings, cattle, sheep, dogs and cats (Te Punga and Bishop 1953). The sources of infection for both serovars are pasture, drinking water and feed contaminated with infected urine, aborted fetuses or uterine discharge.…”

Prevention of leptospirosis in young calves by vaccinating their dams in late pregnancy

“…estimated that up to 10 per cent. of dairy farms in Northland experienced outbreaks of leptospirosis in calves each year, and Te Punga and Bishop (1953) reported the exist· ence of bovine leptospiral abortion in this country.…”