The Florence Detention Center is located in Pinal County, Arizona, and since that initial case, two additional measles cases have been identified in the county. “At this time, Pinal County Public Health Services District has confirmed three measles cases in the county,” spokesperson Jassmin Castro said in an email Wednesday. “PCPHSD continues to follow standard public health protocols for confirmed measles cases, in coordination with state public health partners. Since the start of this year, 25 measles cases have been reported across the state of Arizona. But so far this year, there already have been at least 416 confirmed measles cases reported in the US.