Before we begin: Valley Fever is a disease caused by a fungus called Coccidioides. You get it from inhaling the spores of the fungus. It’s most common in older adults.
This tutorial walks you through everything you need to know about valley fever. We explain it in plain language, step by step, so whether you are a student, a patient, or simply curious, you will come away with a solid understanding.
We cover what it is, why it matters, how it is diagnosed, and what you can do about it. Key facts are called out along the way.
Valley Fever is a disease caused by a fungus (or mold) called Coccidioides. The fungi live in the soil of dry areas like the southwestern U.S. You get it from inhaling the spores of the fungus. The infection cannot spread from person to person.
Anyone can get Valley Fever. But it’s most common among older adults, especially those 60 and older. People who have recently moved to an area where it occurs are at highest risk for infection. Other people at higher risk include:
Workers in jobs that expose them to soil dust. These include construction workers, agricultural workers, and military forces doing field training.
African Americans and Asians
Women in their third trimester of pregnancy
People with weak immune systems
Valley Fever is often mild, with no symptoms. If you have symptoms, they may include a flu-like illness, with fever, cough, headache, rash, and muscle aches. Most people get better within several weeks or months. A small number of people may develop a chronic lung or widespread infection.
Valley Fever is diagnosed by testing your blood, other body fluids, or tissues. Many people with the acute infection get better without treatment. In some cases, doctors may prescribe antifungal drugs for acute infections. Severe infections require antifungal drugs.
Centers for Disease Control and Prevention
Also known as: Coccidioidomycosis.
Related topics: Coccidioidomycosis.
Categories: Infections.
Source: National Institutes of Health — National Institute of Allergy and Infectious Diseases.
Key Takeaways
Understanding valley fever is an important part of taking charge of your health. Here is what to remember:
- Know the signs — Recognizing early symptoms can lead to earlier diagnosis and better outcomes.
- Talk to your provider — If you have concerns or a family history of this condition, bring it up at your next checkup.
- Stay informed — Medical knowledge evolves. Keep learning and asking questions.
- You are not alone — Many people deal with this condition. Support groups and educational resources can help.