Skip Navigation LinksValleyFeverSymptoms

valley fever

Valley fever symptoms

Most people (about 6 in 10) who are infected with Valley fever have no symptoms, and their bodies will fight off the infection naturally.

People who do get sick with Valley fever can have respiratory symptoms or pneumonia because the Valley fever fungus usually infects the lungs. Common symptoms that may develop 1 to 3 weeks after breathing in the fungus include: fatigue, cough, difficulty breathing, fever, night sweats, muscle or joint pain, chest pain, weight loss, headache, and rash. 

Icons depicting Valley fever symptoms: fatigue, cough, difficulty breathing, fever, night sweats, muscle pain, chest pain

    Valley fever can affect people in different ways. Some people with Valley fever may only have mild symptoms that get better on their own in a few weeks. In others, symptoms like fatigue can take longer to go away and can last for several months.

In rare cases, Valley fever can cause severe infections in the lungs or in other parts of the body (called disseminated disease).

People with severe Valley fever may need to be hospitalized, and they will likely need follow-up medical care for several months or even years. If Valley fever infects the brain (called meningitis), a person will probably need lifelong treatment. In very rare cases, severe Valley fever can be fatal.

Disseminated Valley fever

usually causes infections in the skin, bones, joints, or brain, and severe symptoms can include:

  • Skin lesions

  • Bone or joint pain

  • Severe headaches

Page Last Updated :