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Leptospirosis ("Lepto") is a bacterial infection acquired from moist environments (water, soil, mud) where infected animals (wildlife, urban rats, domestic animals) have urinated. The clinical signs of leptospirosis infection vary greatly between animals; some infected dogs never show any signs of disease, while others experience life-threatening kidney and liver damage. Leptospirosis is zoonotic, meaning that it can be transmitted from dogs to humans.

Dosing Schedule: Initial vaccination requires two booster shots spaced 2-4 weeks apart, and one shot every year thereafter.

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