DIPHTHERIA; TETANUS; PERTUSSIS
VACCINE reduces the risk of diphtheria, tetanus (lockjaw), and pertussis (whooping
cough). It does not treat diphtheria, tetanus, or pertussis. It is still possible to get diphtheria, tetanus, or pertussis after receiving this vaccine, but the symptoms may be less severe or not last as long. It works by helping your immune system learn how to fight off a future infection. With the Patient Assistance Program from Sanofi, you can receive your medication at no cost.