TABLE 1.

Comparison Between WHO Recommended Tetanus and Diphtheria Vaccinations and EPI

WHO Recommendations for Routine Immunization Against Tetanus and DiphtheriaPre-2020 EPI Immunization ScheduleTransition Period 2018–2025Planned EPI Schedule Post-2025
DTP3: 3 doses before the age of 6YesYesYes
DTP4 booster: at age 12–23 monthsYesYesYes
TT during pregnancy: 3 doses for all pregnant womenYesYesYes
TT vaccine for girls aged 15–16 years1 dose of TT vaccine for girls aged 15–16 years in high-risk areas on a semiannual basisDiscontinuedDiscontinued
Td (or diphtheria-tetanus containing) vaccine booster doseTd campaigns targeting people aged 5–40 years in areas with diphtheria outbreaks (Td response campaigns)A routine Td booster dose for children aged 7 years
Scaling down of the Td response campaigns
A routine Td booster dose for children aged 7 years
Scaling down of the Td response campaigns
Planning for a Td booster dose for children aged 9–15 years (not yet decided)
  • Abbreviations: DTP3, third dose of diphtheria-tetanus-pertussis vaccine; DTP4, fourth dose of diphtheria-tetanus-pertussis vaccine; EPI, Vietnam Expanded Program on Immunization; Td, tetanus-diphtheria; TT, tetanus toxoid; WHO, World Health Organization.