Nobivac L4 (canine leptospirosis vaccine (inactivated)) is used to protect dogs against Leptospirosis. Contains inactivated antigens of 4 Leptospira interrogans serovars: Canicola, Icterohaemorrhagiae, Australis, and Grippotyphosa. Helps reduce infection and urinary shedding of these Leptospira strains in dogs. An EU Authorised medicine.