Повечето деца получават DTP и OPV едновременно с първите две дози PROCOMVAX или Merck PRP- OMPC Vaccine или Merck Hepatitis B (Recombinant) 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.