Lawsonia derived gene and related hemolysin polypeptides, peptides and proteins and their uses

摘要

An isolated or recombinant immunogenic polypeptide comprising a Lawsonia spp. hemolysin polypeptide corresponding to SEQ ID NO:1 as disclosed in the specification. Also included are vaccines containing the polypeptide, nucleic acid molecules encoding the polypeptide and a plasmid containing the nucleic acid, antibodies specific for the polypeptide and methods of diagnosis and detection using the polypeptide or antibodies.