Question: how is tt injection given?
Answer: The initial three doses are given as Diphtheria and Tetanus Toxoid (tetanus (tetanus toxoid) toxoid) s and Acellular Pertussis Vaccine Adsorbed (DTaP) vaccine, administered intramuscularly at intervals of 4 to 8 weeks. A fourth dose of DTaP is recommended at 15 to 20 months of age.