Florida’s rainy season is beautiful for those of us who love the tropical vibe of the Suncoast, but for dog owners, it brings a seasonal health threat that deserves serious attention. Leptospirosis is a bacterial disease caused by Leptospira bacteria found in the urine of infected wildlife, particularly rats. Our warm, wet climate creates ideal conditions for the bacteria to survive in standing water, muddy areas, and contaminated puddles. Dogs can contract the disease by drinking from contaminated water sources, walking through muddy areas, or coming into contact with infected animal urine. The exposure can happen almost anywhere—hiking trails near Myakka, dog parks, wooded areas, or even puddles in your own backyard.
Recognizing the symptoms early is crucial. Watch for fever, lethargy, muscle pain, vomiting, diarrhea, and loss of appetite. If leptospirosis goes untreated, it can progress to serious kidney and liver damage. The encouraging news is that the disease responds well to prompt veterinary care with antibiotics, and sometimes hospitalization for supportive care. A leptospirosis vaccine is available and worth discussing with your veterinarian, though it’s not mandatory. The vaccine can significantly reduce your dog’s risk of infection, and your vet can help you decide if it’s the right choice based on your dog’s lifestyle and exposure risk.
Prevention is always better than treatment, so take steps to minimize exposure during the rainy season. Prevent your dog from drinking standing water, maintain a clean yard to discourage wildlife, and schedule regular vet checkups. All dog breeds are susceptible to leptospirosis, so no pup is immune regardless of size or breed. If you notice any warning signs in your dog, contact your veterinarian immediately. Have you had your dog vaccinated against leptospirosis, or are you considering it for this season?
