William Melville
Diphtheria can be prevented by vaccination of children (D-tap) and non-immunized adolescents and adults (T dap) with the diphtheria / tetanus / pertussis vaccine. After a single dose of Tap, adolescents and adults should receive an additional Tap or diphtheria / tetanus vaccination (Td) every 10 years. Most cases of diphtheria occur in people who have not been vaccinated at all. It is also advisable to vaccinate all pregnant women.