Post-Spay Care: 7-Day Recovery Timeline and What’s Normal vs. Concerning
If you live in Tucson, valley fever should be on your radar. This fungal infection affects approximately 6-10% of dogs in Pima County every year, making it one of the most common serious illnesses we see at Santa Cruz Veterinary Clinic. Understanding the symptoms, testing process, and treatment options could save your dog’s life.
What is Valley Fever?
Valley fever, or coccidioidomycosis, is caused by the fungus Coccidioides immitis that lives in our desert soil. When dirt gets disturbed by digging, wind, or construction, microscopic spores become airborne. Dogs inhale these spores while sniffing the ground, exploring yards, or just breathing during a dusty Tucson day.
Here’s the good news: about 70% of dogs who breathe in valley fever spores fight off the infection without ever getting sick. Their immune systems handle it, and they likely develop immunity afterward. The remaining 30% aren’t as lucky.
Symptoms to Watch For
Valley fever symptoms often appear 7-21 days after exposure, though sometimes it takes months. The tricky part is that early signs are vague and easy to dismiss.
When infection stays in the lungs:
- Persistent dry cough
- Fever that comes and goes
- Decreased appetite and weight loss
- Lethargy and low energy
- Difficulty breathing in severe cases
When infection spreads (disseminated valley fever):
- Limping or lameness, often shifting between legs
- Swollen joints
- Back or neck pain
- Seizures or behavioral changes (if brain is affected)
- Eye inflammation
- Skin sores that won’t heal
- Swollen lymph nodes
Young puppies and senior dogs face higher risk because their immune systems are either underdeveloped or weakened. Some breeds, particularly Boxers, Dobermans, and Australian Shepherds, seem more susceptible to severe disease.
How Vets Diagnose Valley Fever
Diagnosis starts with a blood test called a titer that measures antibodies against the fungus. A positive result combined with compatible symptoms usually confirms valley fever. Your vet may also recommend chest X-rays to check lung involvement, and additional imaging if bone infection is suspected.
If your dog has been coughing, limping, or acting “off” and you live in Tucson, mention valley fever to your veterinarian. Early detection means easier treatment.
Treatment: What to Expect
Valley fever requires antifungal medication, typically fluconazole, itraconazole, or ketoconazole. Treatment isn’t quick. Most dogs need 6-12 months of daily medication for lung infections. Disseminated valley fever involving bones or organs often requires 12-18 months of treatment. If the brain or spinal cord is affected, lifelong medication may be necessary.
The encouraging news: over 90% of treated dogs survive. Most start feeling better within 1-2 weeks of beginning medication, though you must complete the full treatment course. Stopping early almost guarantees relapse.
Your vet will monitor progress through periodic blood tests and adjust treatment accordingly. Some dogs experience mild side effects like decreased appetite or coat changes, but these typically resolve after treatment ends.
Reducing Your Dog’s Risk
There’s currently no vaccine for valley fever, though researchers at the University of Arizona are working on one. Until then, you can reduce exposure by keeping dogs indoors during dust storms, avoiding digging in undisturbed desert soil, staying on paved walking paths when possible, and limiting outdoor time during peak dust months (June, July, October, November).
That said, living in Tucson means some exposure is unavoidable. The best protection is awareness. Know the symptoms, and don’t hesitate to request valley fever testing if something seems wrong.
When to Call Your Vet
Contact Santa Cruz Veterinary Clinic at (520) 889-9643 if your dog shows persistent coughing, unexplained lameness, recurring fever, weight loss, or just isn’t acting right. Valley fever is treatable when caught early, but delays can lead to serious complications.
Living in the Sonoran Desert means accepting certain realities. Valley fever is one of them. But with vigilance and prompt veterinary care, most Tucson dogs recover fully and go on to live normal, healthy lives.