Leptospira interrogans serotype pomona infection and leptospiruria in vaccinated pigs

Abstract

Extract

Abortions, stillbirths, and high neonatal mortality are the clinical features and reasons for the economic importance of Leptospira serotype pomona infection in pigs. In most cases, however, obvious clinical signs are not observed (Huhn, 1972). There is a large volume of evidence that commercial anti-leptospiral vaccines are generally successful in preventing clinical signs of disease. evidence also exists that some vaccines may, in addition, prevent renal infection and leptospiruria (Stalheim, 1968a,b). In New Zealand vaccines are widely used in pigs for preventing losses associated with pomona infection, but there is little published information concerning their efficacy in preventing infection and leptospiruria.