LAPU-LAPU CITY, Cebu — More than 490,000 young children in Central Visayas remained without a measles-rubella vaccine by the end of the region’s supplemental immunization campaign, with coverage reaching only 21.7 percent of the target population. As of August 29, the final scheduled day of the Department of Health’s (DOH) Measles-Rubella Supplemental Immunization Activity (MR-SIA),