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A scanning electron microscope image of Coccidioides spherules. A spherule is the parasitic form of the fungus that grows inside the human or animal host.

A new Valley fever vaccine for dogs appears to provide a safe and effective defense against the fungal illness that sickens thousands of pets in Arizona each year, and marks a significant milestone that could lead to a similar vaccine for humans. Read more»

Daniel Sestiaga was first diagnosed with Valley fever in 2020, though his infection would later spread throughout his body, turning into the most severe form of the disease known as disseminated Valley fever. Sestiaga is shown here in his Tucson home on Sept. 17, 2021.

Evidence points to Valley fever as a growing problem in Arizona - research shows the most serious form of the illness disproportionately impacts people of color, and likely those who work outdoors - but state policies shield the public from fully understanding the dangers the disease poses. Read more» 1

A postdoctoral fellow in immunobiology, works on a vaccine for Valley fever in the Valley Fever Center for Excellence research lab in Tucson.

Valley fever is getting more attention for a few reasons. The number of cases has been increasing, and a study last year predicted it may spread north through the West as the climate warms. Read more»

A dust storm approaches downtown Phoenix on Aug. 11, 2012. Health officials say summer storms spawning haboobs increase cases of Valley fever.

Since a gigantic haboob in July 2011, Banner Health has seen an epidemic of Valley fever, which can be deadly in patients who have compromised immune systems. Read more» 1

Dr. John Galgiani, director of the UA's Valley Fever Center for Excellence, discusses the health implications of Arizona's recent dust storms. Plus, the debt limit, studen-teacher Facebook friendships, and Arizona's medical marijuana debate. Read more»