Dr. Zaldy Carpeso, Director of Mandaluyong Medical Center, injects the Sinovac vaccine for COVID-19 to Dr. Cesar Tutaan (seated) as Mandaluyong Mayor Menchie Abalos, MMDA Chairman Benhur Abalos, and DOH Regional Director Paz Corrales lead the ceremonial vaccination of frontliners in the city at the Mandaluyong Atrium Executive Building on Saturday.