Boostrix Injections are the bacterial vaccine belonging to the class of combination vaccines containing the active ingredient Diphtheria Pertussis Tetanus (DPT) Vaccine. It is a vaccine used for protecting children against respiratory, skin disease, whooping cough, polio, hepatitis B, and influenza. Diphtheria is a contagious bacterial infection that primarily affects the respiratory system and results in complications, including heart and nervous system damage. Pertussis is characterized by severe coughing fits and a "whooping" sound during inhalation. It can be particularly dangerous for infants, causing serious complications such as pneumonia and seizures. Tetanus, also known as "lockjaw," is caused by a toxin produced by the bacterium. It mainly affects the nervous system and leads to severe muscle stiffness and spasms