Bacteria showing antigenic variation-
Borellia cause Relapsing fever Reason for relapse is antigenic variation by changing outer surface protein. Borellia readily undergoes antigenic variation reason for relapse
Yersinia
Bordetella
Brucella
Borrelia
Systemic Bacteriology (Haemophilus, Yersinia, Spirochaetes, Ricketssia, Chlamydia, Mycoplasma and Miscellaneous Bacteria)