FOR ELEMENTARY AND SECONDARY SCHOOLS RE: SCHOOL-BASED IMMUNIZATION OF MEASLES, MUMPS, RUBELLA (MMR) AND TETANUS DIPHTHERIA (Td) Posted on November 27, 2018 by DepEd Mandaluyong Leave a comment 18-11-134 SCHOOL-BASED IMMUNIZATION OF MEASLES, MUMPS, RUBELLA (MMR) AND TETANUS DIPHTHERIA (Td) Memorandum Unnumbered