Health Services Preventive Medicine provides required and optional immunizations (including hepatitis B and meningococcal vaccine), tuberculosis testing, HIV testing, and travel immunizations and other services. Preventive Medicine hours of operation are Monday through Friday 8:00 a.m. - 11:30 a.m., 1:00 p.m. - 4:00 p.m. Most services are provided on a walk-in basis. For more information, contact Preventive Medicine at 815-753-9585 or 815-753-9759. Their fax number is 815-753-9910. For more details regarding specific services offered by Preventive Medicine, or for immunization deadline information click here.