Treatment schedules for nine groups defined by vaccination schedule and timing of MCC administration vaccine

Group (vaccination)aAction taken at:
Time zero4-6 wk8-12 wk
1 (DT or Td, then MCC)DT or Td administeredBlood taken, then MCC administeredBlood taken
2 (MCC, then DT or Td)MCC administeredBlood taken, then DT or Td administeredBlood taken
3 (MCC with DT or Td)Blood taken then MCC plus DT or Td administeredBlood taken
  • a MCC, one of three MCC vaccines: Chiron (CRM), Wyeth (CRM), or Baxter (TT). DT was given to preschool children, and Td was given to school leavers.