Control options for<i>Neospora caninum</i>– is there anything new or are we going backwards?

Parasitology - Tập 141 Số 11 - Trang 1455-1470 - 2014
Michael P. Reichel1,2, Milton Μ. McAllister1, W.E. Pomroy3, Carlos M. Campero4, Luis Miguel Ortega‐Mora5, John Ellis2
1School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy Campus, Roseworthy, SA 5371, Australia
2School of Medical and Molecular Biosciences, University of Technology, Sydney, PO Box 123, Broadway, NSW 2007, Australia
3Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North 4442, New Zealand
4Instituto Nacional de Tecnología Agropecuaria (INTA), 7620 Balcarce, Argentina
5SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain

Tóm tắt

SUMMARYRecent work has highlighted and enumerated the economic annual losses due toNeospora caninumabortions worldwide, which should provide strong motivation for the control of bovine neosporosis. However, with the recent withdrawal from sale of the only commercially available vaccine, control options forN. caninumhave become more restricted. While researchers continue to work on developing alternative efficacious vaccines, what are the control options presently available for the cattle industries? At the practical level, recommendations for ‘Test-and-cull’, or ‘not breeding from seropositive dams’ stand diametrically opposed to alternative options put forward that suggest a primary producer is better advised to keep those cows in the herd that are already seropositive, i.e. assumed to be chronically infected, and indeed those that have already aborted once. Treatment with a coccidiostat has been recommended as the only economically viable option, yet no such treatment has gained official, regulatory approval. Dogs are central to the life cycle ofN. caninumand have repeatedly been associated with infection and abortions in cattle by epidemiological studies. Knowledge and understanding of that pivotal role should be able to be put to use in control programmes. The present review canvasses the relevant literature for evidence for control options forN. caninum(some of them proven, many not) and assesses them in the light of the authors’ knowledge and experience with control ofN. caninum.

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Parasitology

Tập 141 Số 11

1455-1470

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