About Cache Valley

Key points

  • Cache Valley virus is spread to people by infected mosquitoes.
  • Cache Valley virus disease (Cache Valley) is rare in the United States.
  • Symptoms can include fever, headache, nausea, vomiting, fatigue, and rash.
  • There are no vaccines to prevent or medicines to treat Cache Valley.
  • You can reduce your risk of infection by preventing mosquito bites.
Woman applying insect repellant on her arm.

Overview

Cache Valley virus is spread to people by infected mosquitoes. Very few cases of Cache Valley have been reported in the United States. All have occurred in late spring through early fall.

Cache Valley virus can cause an illness with fever or more severe disease, including infection of the brain (encephalitis) or the lining around the brain and spinal cord (meningitis). Initial symptoms can include fever, headache, nausea, vomiting, fatigue, and sometimes rash.

There are no vaccines to prevent or medicines to treat Cache Valley. Reduce your risk of infection from Cache Valley virus by preventing mosquito bites.

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Content Source:
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)