Journal article
A serological survey to determine the prevalence of infection with Treponema hyodysenteriae in Western Australia
Australian Veterinary Journal, Vol.69(4), pp.81-84
1992
Abstract
A serological survey to detect antibody titres against Treponema hyodysenteriae was conducted on pigs from 106 herds in Western Australia. Titres indicating a positive result in the tests were determined by examining 400 sera from 4 herds known to be free of swine dysentery, and sera from immunised or experimentally infected pigs. Samples of serum from 40 bacon-weight pigs from each of the 106 herds were then collected at 2 abattoirs. Each serum was tested in enzyme-linked immunosorbent assays (ELISA) against the lipopolysaccharide of T hyodysenteriae of serogroups A, B and E, respectively. To assist in evaluating the test, 19 herds were resampled and retested, and faecal samples from 17 herds were cultured for Thyodysenteriae.
Thirty-five of the 106 herds (33%) had serological evidence of infection when only one batch of sera from each herd was tested. The ELISA to detect Thyodysenteriae infection in herds using 40 sera was estimated as having a sensitivity of 77.3% and a specificity of 81.8% based on the owners opinion of their herds disease status. Prevalence of infection within herds ranged from 2.5% to 47.5%, with a mean of 18%.
Details
- Title
- A serological survey to determine the prevalence of infection with Treponema hyodysenteriae in Western Australia
- Authors/Creators
- J.R.L. Mhoma (Author/Creator)D.J. Hampson (Author/Creator)I.D. Robertson (Author/Creator)
- Publication Details
- Australian Veterinary Journal, Vol.69(4), pp.81-84
- Publisher
- Wiley-Blackwell
- Identifiers
- 991005541941807891
- Murdoch Affiliation
- School of Veterinary Studies
- Language
- English
- Resource Type
- Journal article
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