Seroprevalence of Neospora caninum and abortion in dairy cows in northern Spain

R. C. Mainar-Jaime, Mark Thurmond, B. Berzal-Herranz, S. K. Hietala

Research output: Contribution to journalArticle

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Abstract

The seroprevalence of Neospora caninum infection was estimated from a sample of 889 cattle from 43 dairy herds in three counties in the Asturias region of Spain. The true prevalence of infection was estimated to be 30-6 per cent (95 per cent confidence interval (ci) 27-6 to 33-6). Seropositivity was associated with abortion during the previous year (odds ratio (OR)=3-31, P<0-001) and was slightly higher among purchased cattle (37-6 per cent), than among cattle raised on the farm (29-1 per cent) (P=0-078). Seropositive cows were more likely than seronegative cows to have had a seropositive dam (OR=2-3, P=0-011), suggesting that congenital transmission contributed to about 56 per cent of the infections. Herds with a true seroprevalence above 10 per cent had more dogs on the farm, than herds with a lower prevalence (P=0-032). The ORS relating abortion to seropositivity in individual herds ranged from 0-7 to 19, indicating that some herds experienced few abortions caused by N caninum, while others experienced more abortions due to the organism. Overall, 38-7 per cent of the abortions were estimated to have been attributable to N caninum.

Original languageEnglish (US)
Pages (from-to)72-75
Number of pages4
JournalVeterinary Record
Volume145
Issue number3
DOIs
StatePublished - Jul 17 1999

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Neospora
abortion (animals)
Neospora caninum
Seroepidemiologic Studies
seroprevalence
Spain
dairy cows
herds
Infection
Odds Ratio
Induced Abortion
odds ratio
cattle
infection
cows
farms
Dogs
Confidence Intervals
dairy herds
confidence interval

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Seroprevalence of Neospora caninum and abortion in dairy cows in northern Spain. / Mainar-Jaime, R. C.; Thurmond, Mark; Berzal-Herranz, B.; Hietala, S. K.

In: Veterinary Record, Vol. 145, No. 3, 17.07.1999, p. 72-75.

Research output: Contribution to journalArticle

Mainar-Jaime, R. C. ; Thurmond, Mark ; Berzal-Herranz, B. ; Hietala, S. K. / Seroprevalence of Neospora caninum and abortion in dairy cows in northern Spain. In: Veterinary Record. 1999 ; Vol. 145, No. 3. pp. 72-75.
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