Leptospirosis (“lepto”) has become an increasing concern for pet owners in New Jersey and the surrounding Tri-State area. With recent cases affecting dogs in Northern New Jersey and New York, it’s important for homeowners to understand what this disease is, how it spreads, and how to reduce the risk of infection.
While leptospirosis is not new, the way it spreads and its potential impact on both animals and humans makes it a serious issue that should not be ignored.
Leptospirosis is a bacterial infection commonly spread through the urine of infected wildlife, especially rodents such as rats and squirrels.
Dogs are often exposed when they:
Once infected, dogs can pass the bacteria through bodily fluids, creating additional risk for other animals and, in rare cases, humans.
Leptospirosis is a zoonotic disease, meaning it can spread from animals to humans.
While human infection is less common, it can occur through:
Because of this, leptospirosis is both a veterinary and public health concern, especially in areas with high rodent activity.
Symptoms can vary widely and may resemble other illnesses, which is why diagnosis is often delayed.
If left untreated, leptospirosis can progress to severe kidney or liver damage and may become life-threatening.
Leptospirosis is typically treated with antibiotics. Early detection is critical for both animals and humans, as treatment is most effective in the early stages.
Veterinarians may also recommend supportive care depending on severity.
Rodents are one of the primary carriers of leptospirosis. The bacteria can survive in water and soil for weeks or even months after contamination.
Infected animals may show no symptoms, which makes the spread even harder to detect. This is why rodent control plays a major role in reducing leptospirosis risk around homes and businesses.
The most effective long-term prevention method is reducing rodent populations around your property.
Professional rodent control programs, such as SMART monitoring systems, help detect activity early and prevent infestations before they grow. These systems can provide continuous monitoring and early warnings of rodent presence, helping reduce the risk of disease transmission.
Leptospirosis is a serious but preventable disease. While the overall risk to humans remains relatively low, the impact on pets—especially dogs—can be severe.
Understanding how it spreads and taking proactive steps to control rodents, protect pets, and eliminate exposure to contaminated water sources can significantly reduce risk for both your household and your community. We at Viking are here to help. Contact us today!