Doctors concerned about rising number of Valley Fever cases

FRESNO, Calif. (KFSN) -- Valley Fever cases are on the rise, becoming a disturbing trend for doctors in the Western U.S.

Between 2014 and 2018, Valley Fever cases tripled in California alone, and the state reached a record high of 9,004 new cases in 2019.
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Valley Fever is caused by a fungus that primarily resides in the soil in western states.

Infection can manifest as primarily a respiratory illness but can become severe in about 5% to 10% of patients.
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While Valley Fever tends to only impact arid climates, scientists are warning that climate change could soon lead to it spreading to other states.