Coconino County has seen an increase in hantavirus activity. Three hantavirus cases have been reported in the past 15 months, two of which have died (67% mortality rate). Previously, Coconino County’s last reported hantavirus case occurred in 2016.
Arizona has also been experiencing an increase in hantavirus activity. From January 1 to July 1, 2024, seven human cases of Hantavirus Pulmonary Syndrome (HPS) have been confirmed, resulting in three deaths in Arizona.