The Cape Girardeau County Public Health Center is offering free tetanus, diphtheria and pertussis vaccinations to adults during September. The vaccine has been provided for free by the Missouri Department of Health and Human Services. Symptoms of tetanus include muscle tightening and stiffness throughout the body. Diphtheria can cause a thick coating to form in the back of the throat that can lead to breathing problems and death. Symptoms of pertussis, commonly known as whooping cough, include sneezing, runny nose, low-grade fever and a mild, occasional cough. The vaccination is recommended for all ages and those who have not had the shot in five years. Walk-ins are welcome from 8:30 a.m. and 4 p.m. Monday through Friday during September at the public health center, 1121 Linden St. in Cape Girardeau.