Salmonella Dublin infection in Queensland dairy cattle

Australian Veterinary Journal
K F TruemanP F Duffy

Abstract

To investigate the presence of Salmonella Dublin in Queensland cattle. An epidemiological study using diagnostic laboratory information and farm records. Outbreaks of gastroenteritis or pneumonia in calves, and abortions and enteritis in cows were routinely investigated for the presence of salmonellae. Where S Dublin was isolated, attempts were made to gather further epidemiological information. Prior to 1983 only two outbreaks of S Dublin have been recorded in Queensland dairy cattle. In 1983 S Dublin abortions were diagnosed in dairy heifers introduced from southern Australia to south-east Queensland. Sampling indicated that at least 10% of the 500 introduced heifers were faecal excretors of S Dublin. On 3 of the 7 farms from which S Dublin was recorded, infection spread to other cattle that were in contact. From February 1985 to February 1996, 29 outbreaks of S Dublin in cattle occurred on 29 farms (28 in south east Queensland and 1 in north Queensland). Calves were primarily affected. Continuing outbreaks were confirmed on only 4 of these 29 farms. On 15 farms S Dublin infections were associated with the purchase of infected calves or cows, while another farm adjoined 2 previously infected farms. No source of S Dublin was e...Continue Reading

References

Sep 1, 1977·Australian Veterinary Journal·B M O'Sullivan
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Oct 1, 1990·Epidemiology and Infection·C WrayB Rowe
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Apr 1, 1973·Australian Veterinary Journal
Mar 1, 1973·Australian Veterinary Journal·K L Hughes, T E Jones
Mar 1, 1994·Australian Veterinary Journal·C J Murray

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