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Posted on 11-30-2017

Leptospirosis, or lepto as it is commonly called, is an emerging infectious disease that
poses a risk to both pets and humans. It is also zoonotic, meaning it can be
transmitted from pets or other animals to people. We have seen an increasing
number of cases involving leptosporosis in California and in fact lepto is the most
widespread zoonotic disease worldwide (especially in developing countries). We
recently treated a patient at our hospital and feel the need to spread the word that
Leptospirosis is something we cannot ignore.


This infectious disease, caused by many different strains of the bacteria Leptospira, is
thought to enter the body by contact with infected water or urine from wildlife/
animal carriers. Once the pet becomes infected the bacteria can spread to the liver,
kidney, central nervous system, eyes, spleen or genital tract. If that occurs, the
animal may lack any signs or may have symptoms such as lethargy, loss of appetite,
fever, vomiting or dehydration. Using bloodwork, urinalysis and advanced testing
techniques, we can diagnose the disease. Treatment often involves aggressive IV
fluids to treat kidney failure and IV antibiotics to treat the bacteria specifically.
Quick action can help save most pets with survival rates at 70-85%. Since the disease can infect people, our hospital needs to keep affected animals alone and away from others (quarantined) during treatment to prevent spreading the disease to our staff and minimize risk to pet owners.


Luckily, for dogs at risk we have an annual vaccine that helps protect against the main strains of the bacteria. It is not currently a core vaccine but is highly recommended. Now that we are approaching the winter and the heavy rainy season in the Bay Area, it is a good time to opt for the vaccine. If your dog is outdoor and active in places that have stagnant water, rivers, lakes, etc. you should definitely consider getting this vaccine for your pet. And even if you have a dog that tends to be a couch potato or a home body, it is still a good idea to give them this valuable protection from a terrible disease.

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