LUCENA CITY — The measles-rubella vaccination campaign in the Calabarzon region reached 56.8 percent of its target population in 20 days , according to the Department of Health Center for Health Development (DOH-CHD) Calabarzon. Based on the agency’s accomplishment tracker, 758,454 children had received measles-rubella (MR) vaccines as of 10 p.m. Friday. The DOH-CHD had