''A.suis'' are able to resist bile and serum and have genes that encode toxins similar to apxI and apxII of [[Actinobacillus pleuropneumoniae| ''A. pleuropneumoniae'']], but they are less virulent. Once an animal is infected with ''A.suis'' it can provide '''partial cross protection against ''A. pleuropneumoniae'''''. | ''A.suis'' are able to resist bile and serum and have genes that encode toxins similar to apxI and apxII of [[Actinobacillus pleuropneumoniae| ''A. pleuropneumoniae'']], but they are less virulent. Once an animal is infected with ''A.suis'' it can provide '''partial cross protection against ''A. pleuropneumoniae'''''. |