Lawsonia vaccine and methods of use thereof

摘要

The present invention provides improved vaccination methods for increased protection against ileitis. The methods provide for the vaccination of young animals, preferably piglets, between 10 and 26 days of age, vaccination of pregnant sows during the second or third stages of gestation, and a combination of these methods. Vaccination of the pregnant sows may occur using repeated and/or high doses of Lawsonia antigen prior to farrowing.