An estimated 30 to 40 Arizona residents die from valley fever each year.
valley fever cases have been diagnosed in Washington state, beyond its normal geographical range, he added.
According to the CDC (PDF), nearly 75 percent of valley fever victims miss work or school for about two weeks.
The scientific term for the disease is coccidioidomycosis, most commonly known as valley fever.
valley fever, which can be fatal, is being called a silent epidemic.
valley fever vall·ey fever (vāl'ē)