06/16/2025
Leptospirosis vaccines are an important addition to your dog’s regular veterinary care routine.
Leptospirosis in dogs is an infection caused by Leptospira, which are bacteria that target the kidneys and liver. The bacteria are typically transmitted by drinking contaminated with urine from rats, mice, deer, opossums, raccoons and skunks, dogs, cattle and wildlife. Some strains may actually enter the body through the dog’s skin if they swim in contaminated water. Commonly diagnosed in dogs, this disease can be fatal.
The vaccine is administered in puppies over 12 weeks and once a year in adult dogs. According to the American Veterinary Medical Association (AVMA), the vaccine remains effective for 12 months.
