SAN ILDEFONSO, Ilocos Sur — A total of 272,096 children, or 61.2 percent of the target population, have been vaccinated against measles and rubella in the Ilocos Region as of Sept. 2, according to the latest “Ligtas Tigdas” bulletin. The vaccination campaign covers children aged 6 months to 59 months across the region. Among the age groups, children aged 24 to 59 months accounted for the largest number of vaccinated at 186,926, representing 63 p…