23/08/2026
Leptospirosis in Dogs & Cats
Leptospirosis is a bacterial disease caused by *Leptospira* bacteria that primarily affects dogs but can also infect cats. It is a zoonotic disease, meaning it can spread from animals to people. Pets usually become infected through contact with urine from infected animals, or by exposure to contaminated water, soil, or mud. The incubation period is typically **4–12 days** after exposure.
In dogs, common signs include fever, lethargy, loss of appetite, vomiting, diarrhea, increased thirst and urination, muscle pain, jaundice, and in severe cases, kidney or liver disease. Cats often show milder signs or may have no obvious symptoms, although fever, reduced appetite, lethargy, and kidney or liver abnormalities can occur.
If leptospirosis is suspected, your veterinarian may recommend diagnostic tests such as a complete blood count (CBC), blood chemistry profile, urinalysis, PCR testing, and antibody (MAT/serology) testing. Early diagnosis is important to assess organ involvement and confirm infection.
If you have concerns that your pet may have been exposed to leptospirosis or is showing compatible signs, please contact any of our clinics for advice or to arrange an examination:
**Bedok:** 6636 1788
**Balestier:** 6565 1788
**Outram:** 6575 1788
**Balmoral:** 6555 1788
