Coccidioidomycosis, commonly called valley fever, is a fungal infection of the lungs that can cause serious problems.
The fungus that causes valley fever is found in the soil, most commonly in the southwestern United States, Mexico, and parts of Central and South America. The fungus lives in the soil, but it is transported through the air and into the lungs, where it infects people who breathe it in. When soil that contains the fungus is disturbed, spores are released into the air.
The disease cannot be transmitted from person to person.
People who are at increased risk of exposure to the fungus include:
People who are at increased risk of getting valley fever after exposure include:
Some people have no symptoms of valley fever. Others may have:
The fungus can affect other parts of the body besides the lungs, but it is then called disseminated valley fever.
You will be asked about your symptoms and medical history. A physical exam will be done.
Your bodily fluids may be tested. This can be done with:
Talk with your doctor about the best treatment plan for you. Treatment options include:
There is no effective way to prevent being infected with valley fever. Take extra precautions in areas where the infection is most common and during warm months when the chance of infection is increased.
To help reduce your chances of getting valley fever, take the following steps:
Family Doctor—American Academy of Family Physicians
Valley Fever Connections
Public Health Agency of Canada
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Galgiani JN. Valley fever tutorial for primary care professionals. The Valley Fever Center for Excellence website. Available at
http://www.vfce.arizona.edu/resources/pdf/Tutorial_for_Primary_care_Physicians.pdf. Updated 2012. Accessed December 22, 2014.
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Valley fever in people. Valley Fever Center for Excellence website. Available at:
Accessed December 22, 2014.
Last reviewed December 2014 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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