Central Florida counties adapt vaccine strategy adding mobile sites, more walk up locations Larger sites still in operation but mobile, walk-up locations offer accessible alternatives Tags: OSCEOLA COUNTY, Fla. – News 6 traveled to different counties in Central Florida Friday to learn how counties are adapting to better help their communities quickly get the coronavirus vaccine. For those in Osceola County, the Florida Department of Health said 65th Infantry Veterans Park and Chambers Park Community Center are two sites that offer walk-ups with no appointments needed. Both sites are open to the public, Monday through Sunday, according to the Health Department. Centro Cristiano Dios De Pactos Church is the Florida Department of Health’s main site in Osceola County and it is also open to the public but does require an appointment.