De fleste børn modtog DTP og OPV samtidig med de 2 første doser PROCOMVAX eller Merck PRP- OMPC vaccine eller Merck Hepatitis B (rekombinant) vaccine.
Most children received DTP and OPV concomitantly with the first two doses of PROCOMVAX or Merck PRP-OMPC Vaccine or Merck Hepatitis B (Recombinant) Vaccine.