Leptospirosis in Dogs: What It Is and Why It Matters
Leptospirosis, often shortened to “lepto,” is a serious bacterial infection that affects both pets and people. At our vet clinic in Fargo ND, we’ve seen a growing number of cases in recent years, and it’s important for pet owners to know what to watch for—and how to protect their dogs.
What is Leptospirosis?
Leptospirosis is caused by spiral-shaped bacteria called leptospires. These bacteria thrive in warm, wet environments and are commonly found in stagnant water, wet soil, and areas with high wildlife or rodent populations. Dogs can become infected by drinking contaminated water, walking through puddles, or even licking their paws after exposure.
How It Affects Dogs
Once inside the body, leptospires can damage the kidneys and liver, leading to symptoms like fever, vomiting, diarrhea, lethargy, and increased thirst. In severe cases, leptospirosis can cause organ failure and be fatal. It's also a zoonotic disease, meaning it can spread from animals to humans—so keeping your dog safe helps protect your family, too.
Prevention: The Lepto Vaccine
The good news? There’s a safe and effective vaccination for leptospirosis, and it’s now considered part of the core vaccines for dogs—those recommended for all dogs, regardless of lifestyle. Here at Two Rivers Veterinary Hospital, we include this vaccine as part of your dog’s regular wellness care to help ensure long-term protection.
Why It Matters in Fargo
You might think leptospirosis is only a concern in warmer climates, but it’s present here in North Dakota, too. With our mix of urban wildlife, wet springs, and puddle-loving pups, the risk is real. Even indoor dogs can be exposed if rodents are present in or around the home.
Let’s Talk Prevention
If your dog hasn’t been vaccinated against leptospirosis, we recommend adding it at their next visit. It’s one of the simplest and most effective ways to protect your pet’s health and prevent a serious illness. Have questions? Give us a call—we’re always happy to help.
