VACCINES FOR CONTROL OF EPIDEMIC AEROMONAS HYDROPHILA GENERATED BY MARKERLESS GENE DELETION

摘要

Disclosed are attenuated bacteria, compositions comprising attenuated bacteria, and vectors and methods for preparing attenuated bacteria. The attenuated bacteria may include attenuated Aeromonas hydrophila for use in vaccinating aquatic animals such as channel catfish against Motile Aeromonas Septicemia (MAS).