Naturally occurring lesions of the uterine tube in sheep and serologic evidence of exposure to Chlamydophila abortus

The uterine tubes from 405 ewes, collected at an abattoir, were assessed gr ossly and microscopically for abnormalities that correlated with serologica l evidence of exposure to Chlamydophila abortus. Gross lesions were found i n 41 ewes and 86 had microscopic lesions. Enzyme immunoassay (EIA) of serum was used as an indication of exposure of individual ewes to C. abortus; 52 were found to be positive. Chi-squared analysis indicated no association b etween EIA-positive animals and lesions of the uterine tube.