Vaccinations

Leptospirosis in Dogs: What Every Pet Owner Should Know

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What is Leptospirosis?
Leptospirosis is a bacterial infection that can affect dogs, caused by the bacteria Leptospira.

It is a zoonotic disease, meaning it can be transmitted from animals to humans. The bacteria thrive in warm, moist environments and are often found in stagnant water.

How is it Spread?

Dogs can contract leptospirosis through:

  • Direct contact with contaminated water, soil, or food.

  • Exposure to the urine of infected animals like rodents.

  • Open wounds that come in contact with contaminated areas.

Signs and Symptoms of Leptospirosis

Early detection is critical. Common symptoms include:

  • Fever and lethargy

  • Vomiting and diarrhea

  • Loss of appetite

  • Muscle pain and stiffness

  • Jaundice (yellowing of the skin and eyes)

If left untreated, leptospirosis can lead to kidney or liver damage and can be fatal.

Prevention Tips

  • Vaccination: Make sure your dog is vaccinated against leptospirosis, especially if you live in a high-risk area.

  • Avoid Stagnant Water: Prevent your dog from drinking or swimming in lakes, ponds, or areas where water may be contaminated.

  • Control Rodents: Rodents can carry the bacteria, so keeping them out of your home or yard can reduce your dog’s risk.

Treatment Options

Leptospirosis is treatable with antibiotics if caught early. In severe cases, hospitalization for supportive care may be needed. Always consult your veterinarian if you notice any symptoms in your dog.

Is My Dog at Risk?

Dogs that spend time outdoors, particularly in wooded or rural areas, are at higher risk. Dogs that live in urban areas can also be exposed to leptospirosis through contact with rodents or contaminated water sources.

Jason Epstein

Collaborator & Editor

Veterinarian with 20+ years of experience leading staffing, operations, and practice management. Proven success in driving growth, optimizing workflows, and improving patient care. Committed to mentoring teams and leveraging technology to enhance efficiency and care standards.

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