5708 C. ARIYASRI WATANA J Mad A M Thai August 2003
and 5-9 age groups. Vaccine failure may be one of the contributing factors of measles cases in children
in these age A booster dose of measles vaccine at 15-18 months old is suggested in order
to increase the seroprotection in children in the under 5 and 5-9 age groups.
Key word : Measles Morbidity, Measles Immunization
J Med Assoe Thai 2003; 86 (Suppl3): S7M-S718
* Department of Social Pediatrics, Queen Sirikit National Institute of Child Health, Bangkok 10400, Thailand.
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