Pima County, FEMA to bring Mobile Vaccination Units to increase vaccine access Unmute PIMA COUNTY (KVOA) - The Federal Emergency Management Agency (FEMA) is partnering with Pima County to bring a series of mobile vaccination units to the area, the county said Thursday. In order to increase vaccine access and availability, FEMA will be sending two mobile units, staff, and federal vaccinators to Pima County. The county says this will help reach communities with high risks of COVID-19 exposure and infection. The operations will run through June 26. MVUs will operate at two concurrent locations for three days before tearing down and moving to the next site. Locations were selected based on census tract data and the Social Vulnerability Index of the area.