Abstract: Pasteurella multocida can cause fowl cholera, porcine atrophic rhinitis and other animal diseases. It’s an important animal pathogenic microorganisms. Many products encoded by its genome play important role in the pathogenicity and induction of immune responses. So the research of Pasteurella multocida has become a hotspot. In this paper, a comprehensive summary of the research status of Pasteurella multocida capsule, outer membrane proteins, lipopolysaccharide and other virulence factors and important genes were given.

Key words: Pasteurella multocida; virulence factors; immunogen; genes