Significance of Neospora caninum in British dairy cattle determined by estimation of seroprevalence in normally calving cattle and aborting cattle.

摘要: A case control study was conducted to evaluate the significance of Neospora caninum infections in cattle England and Wales. The prevalence N. normally calving (the group; n = 418) aborting (n 633) estimated using a commercial antibody-detection ELISA. Prevalence estimates for bovine virus diarrhoea virus, infectious rhinotracheitis Leptospira hardjo were also obtained by serology. significantly higher (P < 0.0001) group (18%; 95% confidence interval: 15%, 21%) than (6%; 4%, 8%); latter is first estimate, date, national seroprevalence dairy L. not found be group. With caninum, strong association between seropositivity abortion found, with seropositive cows being 3.5-times more likely abort seronegative (odds ratio 3.49; 2.16, 5.69). Furthermore, 12.5% abortions Wales may attributable as indicated estimation population aetiological fraction.