The study aimed to determine the seroprevalence and risk factors associated with individual and herd seropositivity to bovine paratuberculosis in dairy farms in the municipality of Paipa, Boyacá. A cross-sectional observational study was conducted on 460 cows with multiple calvings across four dairy farms. Animals were selected using convenience sampling. Blood samples were taken, and epidemiological information was collected through a survey. Antibody presence was determined using the indirect ELISA test with the ID Screen® Paratuberculosis Indirect Test (ID-Vet) kit. A prevalence ratio analysis was performed, followed by a logistic regression analysis, considering variables with a p<0.05 as statistically significant. Seropositivity was associated with poor body condition, four or more lactations, and consumption of untreated water. In general, 5.41% (25/460) of the cows tested positive for MAP by ELISA test and 50% (2/4) of the herds had seropositive animals.
Salamanca-Acuña et al. (Fri,) studied this question.