09/24/2026
🌵 MORE THAN JUST A COUGH: VALLEY FEVER IN DOGS 🐾
If you live in Southern Arizona, you’ve probably heard of Valley Fever—but did you know it can cause much more than respiratory symptoms?
Valley Fever is caused by the fungus Coccidioides, which lives in the soil. Dogs become infected by inhaling fungal spores from the environment.
Signs to watch for include:
• Coughing or fever
• Decreased appetite or weight loss
• Low energy
• Limping or swollen limbs
• Back or neck pain
• Eye inflammation
• Skin lesions
• In more severe cases, neurologic signs such as seizures
🧪 What about Valley Fever titers?
Blood testing can detect antibodies against Coccidioides. Titers may help support a diagnosis and monitor disease, but the number alone does not determine how sick a dog is. Your veterinarian will interpret the result along with your dog's symptoms, examination and other diagnostic findings.
💊 Dogs that develop clinical Valley Fever are commonly treated with antifungal medications such as fluconazole, itraconazole, or posaconazole. Treatment is often prolonged—commonly months to lifelong, depending on the individual needs.
🌵 Here in Southern Arizona, Valley Fever is an important consideration for dogs with persistent coughing, unexplained lethargy, weight loss, fever or even unexplained limping.
📚 Want to learn more?
The University of Arizona Valley Fever Center for Excellence is an excellent resource for pet owners and has extensive information about Valley Fever in dogs.
Information for this post was obtained from the University of Arizona Valley Fever Center for Excellence.