Vaccine against E. coli for protection against avian colibacillosis

摘要

1. Coliform bacteria;characterized in that it has the identification characteristics of the strain deposited in the American Type Culture Collection under the assigned number PTA-5094.17.- A vaccine composition, characterized in that it comprises an immunogenically effective amount of a mutant E. coli strain having the characteristics of Identification of E. coli aroA-PTA-5094 and a pharmacologically acceptable excipient or vehicle, where the vaccine is safe and effective for mass application via aerosol spray or drinking water, and where in addition the immunogenically effective amount is sufficient to provide approximately 3.0 x 106 cfu to 6.0 x106 cfu.