Systematic Veterinary Bacteriology and Mycology

ANTIGENICITY

• Ten serological types have been recognized based on the flagellar antigen (types I to X). Type VI contains non flagellated strains.
• All types produce the same neurotoxin- tetanospasmin. Which can be neutralized by one common antitoxin.
• They have a common heat stable somatic antigen shared by all types.
• A second somatic antigen is shared by type II, IV, V and X.