Valley Fever: Symptoms & Signs

Valley fever is the name given to a disease known as coccidioidomycosis.

Most people infected with Coccidioides do not show symptoms. However, if symptoms develop, they typically resemble early symptoms of the flu or pneumonia. Signs and symptoms of valley fever can include

People with weakened immune systems may have worse symptoms. Valley fever is not contagious. People only become infected when they inhale spores of the fungus from the environment.

Cause of valley fever

This is a disease caused by a fungus, Coccidioides, which lives in the soil of relatively dry regions such as the southwest U.S.

Other valley fever symptoms and signs

  • Chills
  • Cough
  • Fatigue (Tiredness)
  • Fever
  • Headache
  • Muscle Aches or Joint Pain
  • Night Sweats
  • Rash on the Upper Body
  • Shortness of Breath


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Medically Reviewed on 7/11/2020
Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.