Valley fever, historically found only in the Southwest, is spreading. It can have devastating consequences.

Valley fever is an infection caused by breathing in spores of the fungus coccidioides. 97% of all U.S. cases of Valley fever are reported in Arizona and California. Symptoms include fatigue, cough, fever, shortness of breath and muscle aches. In 5% to 10% of cases, the infection can lead to long-term problems in the lungs.

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