Appointments must be made in advance through the Polk County Health Department (402) 747-2211. Appointments Available on the 2nd Wednesday and the 3rd Monday of each month. July 14th, 3:30-5:30 July 19th 3:30-5:30 August 11th 1:30-3:30 August 16th 3:30-5:30 September 8th 3:30-5:30 September 20th 3:30-5:30 October 13th 1:30-3:30 October 18th