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  1. About Leptospirosis | Leptospirosis | CDC

    Aug 8, 2025 · Leptospirosis is a disease caused by the bacterium Leptospira that can be found in contaminated water or soil. It affects many different kinds of animals and people.

  2. Leptospirosis - Wikipedia

    Leptospiral infection in humans causes a range of symptoms, though some infected persons may have none.

  3. Leptospirosis in Dogs: Causes, Symptoms, and Treatment

    Aug 7, 2023 · Leptospirosis is a zoonotic disease, meaning it’s caused by exposure to harmful germs that animals can spread to humans. People may contract leptospirosis by coming into contact with an...

  4. Leptospirosis in Dogs - PetMD

    Oct 17, 2025 · Leptospirosis is a serious zoonotic disease that affects dogs and humans, caused by the Leptospira bacteria and spread primarily through contaminated water. Symptoms vary widely, from …

  5. What Is Leptospirosis & Should My Dog Be Vaccinated? - INVMA

    Leptospirosis (Lepto) is a disease caused by Leptospira bacteria that can affect both animals and humans. In fact, it is currently the most common zoonotic disease in the world, that can be …

  6. . What is Leptospirosis? - Leptospirosis is caused by a spiral-shaped bacterium . f the family Leptospira. The disease is found worldwide and affects humans and a variety of animals including dogs, cattle, …

  7. Leptospirosis in Dogs | VCA Animal Hospitals

    Leptospirosis is uncommon in areas where dogs are routinely vaccinated. However, disease outbreaks are still seen occasionally because vaccines protect against only the four most prevalent strains of …

  8. About Lepto - Merck Animal Health USA

    Learn more about the signs of disease. A leptospirosis vaccine for dogs helps protect against disease, even if dogs are exposed to the bacteria. Protect BEFORE an outbreak, and help dogs live longer, …

  9. Canine leptospirosis | Cornell University College of Veterinary Medicine

    Canine leptospirosis is a bacterial infection that can have serious consequences in dogs and can also affect humans. There are multiple strains of the bacteria called Leptospira that cause leptospirosis.

  10. Leptospirosis: Causes, Symptoms, Diagnosis & Treatment

    Leptospirosis can cause flu-like symptoms that can worsen into Weil’s syndrome, a life-threatening illness, in a small number of people. Symptoms of leptospirosis start two days to four weeks after …