California Vets Issue Warning as Salmon Poisoning Disease Affects Local Dogs


As the eagerly awaited fishing season, or Fishmas, approaches in California, veterinarians are issuing a stark warning to dog owners about a lesser-known but serious threat: Salmon Poisoning Disease (SPD). With the state’s rivers and lakes soon to be bustling with anglers and the promise of fresh trout meals, the excitement is palpable. However, this season also brings a health risk to our canine companions that every dog owner should be aware of.

Understanding Salmon Poisoning Disease

Salmon Poisoning Disease is an infectious condition specifically affecting dogs, caused not by poison but by a complex infection involving a bacteria-laden parasite found predominantly in raw fish like trout and salmon. Karen Ehnert, Director of Veterinary Public Health in Los Angeles County, highlighted this issue in a recent advisory following several reported cases in the region.

From June 2023 to March 2024, multiple dogs were reported to have contracted SPD, with four severe cases emerging from a Pasadena emergency veterinary clinic just this past March. Fortunately, these cases were not fatal, but they underscore the severity and acute risk of the disease.

Symptoms and Transmission

Dogs can contract SPD by consuming raw trout, often caught during recreational fishing, or by drinking water that has been used to rinse such fish. The disease is not immediate; it can take up to seven days for symptoms to appear. These symptoms include:

  • Lethargy
  • Fever
  • Vomiting
  • Diarrhea
  • Enlarged lymph nodes

These signs are distressing and can lead to severe dehydration and other complications, often requiring hospitalization of the affected animal.

Prevention and Care

The key to combating SPD is prevention. Ehnert strongly advises against feeding dogs raw fish and recommends keeping dogs away from water used to clean these fish. Owners should ensure any fish caught during sport fishing is thoroughly cooked before any consumption, including by pets. Additionally, meticulous hygiene such as washing hands after handling raw fish is crucial to prevent the spread of the disease.

For dog owners who may have already exposed their pets to raw fish, vigilance is essential. Monitoring your dog for the signs of SPD for 10-14 days after exposure can help catch the disease early, improving the chances of a full recovery.

The Importance of Awareness

While the disease may seem like a niche concern limited to areas popular with anglers, the spread of SPD during fishing season highlights a broader issue of pet safety in environments shared with wildlife and natural water bodies. Awareness and education about such health risks are vital for all pet owners, ensuring that a day out by the lake doesn’t turn into a life-threatening situation for our beloved dogs.

Community Response

Veterinarians across California are working to raise awareness about SPD, especially in light of the recent cases. By informing the public and providing clear guidelines on how to prevent the disease, they hope to minimize the impact of this season’s fishing activities on pet health. This community-driven approach is crucial in areas like Los Angeles County, where fishing is both a recreational activity and a cultural event during the Fishmas season.

Looking Ahead

As more dog owners become aware of the risks and prevention methods associated with Salmon Poisoning Disease, the hope is that future seasons will see fewer cases. Education and proactive measures can significantly reduce the incidence of SPD, ensuring that both the human and canine members of the family can enjoy California’s beautiful natural resources safely.

In conclusion, while the fishing season brings much joy and recreation, it also calls for increased responsibility among pet owners. By understanding the risks of Salmon Poisoning Disease and taking the necessary precautions, we can protect our dogs from this dangerous infection and ensure that our fishing adventures are safe for everyone involved.