Herd-level seroprevalence of Neospora caninum infection in dairy cattle in Central and Northeastern Poland

摘要: A serosurvey was carried out to estimate the herd-level seroprevalence of Neospora caninum infection in cattle central and northeastern Poland. Ninety seven dairy herds from 2 provinces Poland (Podlaskie, 47 Łodzkie, 50 herds) were randomly enrolled study using two-stage cluster method. simple random selection applied within each herd select a sample adult cows (≥18 month-old). total number 734 study. The animals screened with commercial competitive ELISA (Bio-X Diagnostics, Belgium). To calculate true test sensitivity specificity adjusted an individual- FreeCalc overall N. 56.7% (95% CI: 47.5%, 65.9%). Podlaskie 63.3% 43.0%, 83.6%) 50.5% 32.8%, 68.2%) Łodzkie province these figures did not differ significantly between two (chi2 p = 0.238). One hundred forty three (19.5%) seropositive which gave individual-level 20.1% 17.4%, 23.2%). Percentage varied 6% 80%. This is first epidemiological investigation Polish population. In conclusion, result confirmed previous data that widespread population thus should be considered as potential cause spontaneous abortions.