PHOENIX (AP) -- The big dust cloud that rolled through the desert last week may lead to lasting health issues for some. Spores inside the dust get kicked up. We can breathe in those spores and that can lead to valley fever.
Arizona Department of Health Services public health officer Dr. Cara Christ says doctors probably won't begin seeing signs of valley fever for probably another month.
Christ says there's an incubation period and people may begin to experience a cough, fatigue and weakness and may think it's just a cold or flu.
But Christ says people will start to notice that after a few weeks, they're not getting any better and that's when they will visit their doctor.
Christ says valley fever can be fatal in people with compromised immune systems.