The 23rd annual Valley Fever Awareness Week runs from November 8th to 16th, and helps to shine a spotlight on coccidioidomycosis, better known as Valley fever. This week is all about helping our communities throughout Arizona understand the risks, recognize the symptoms, and take steps to stay healthy.

What is Valley Fever?
Valley fever is a lung infection caused by a fungus called Coccidioides, which lives in Arizona’s dry desert soil. When the soil is disturbed by wind, construction, or even outdoor activities, the fungus can break apart and become airborne. If these fungal spores are inhaled, they can cause infection. That means whether you live in Arizona or are just visiting, you could be at risk.

Why Awareness Matters
In 2024, a total of 14,763 Arizonans tested positive for Valley fever. Of those, 986 were hospitalized, and 86 sadly lost their lives (see the 2024 Valley Fever Annual Report). With numbers like these, knowing what to look for is essential.

Common symptoms include:

  • Cough

  • Fatigue

  • Rash

  • Fever

If you experience these and think you might have been exposed, ask your healthcare provider to test you for Valley fever. Early diagnosis can make a big difference.

Some people are more likely to develop severe forms of the disease, including those with weakened immune systems, diabetes, or who are pregnant.

For Healthcare Providers
If you suspect Valley fever, consult the Clinician’s Guide to Diagnosing Primary Pulmonary Coccidioidomycosis. The diagnostic process begins with a clinical evaluation, followed by serologic testing (enzyme immunoassay IgM and IgG). Positive results should be confirmed through immunodiffusion or complement fixation testing. Serial testing helps monitor disease progression, guide treatment, and clarify inconclusive results in high-suspicion cases.

Together, We Can Reduce the Impact
Raising awareness is key to early detection and prevention and that starts with all of us. You can help protect yourself and your community by:

  • Knowing the signs and symptoms

  • Talking to your provider about testing

  • Avoiding activities that kick up dust when possible

Let’s work together to keep Arizona healthy. To learn more about Valley fever, its prevention, and available resources, visit the Arizona Department of Health Services at www.valleyfeverarizona.org.