DOE Secretary Alfonso Cusi (Photo from DOE Facebook page) This, as Cusi acknowledged the “damage” caused to 348 vials of Coronavac–the vaccine manufactured by China’s Sinovac Biotech Ltd.–by a power outage in Makilala town, North Cotabato and the subsequent boo-boo of municipal workers there. “I urge the diligence of everyone concerned so that this incident will not happen again. We cannot afford negligence or even a simple overlook to derail and affect the government’s vaccination drive,” he said in a statement over the weekend. The DOE chief said that as per the report of Cotabato Electric Cooperative (Cotelco), a power outage occurred in Makilala at around 1:30 p.m. on Friday, May 7 that lasted for one hour and 30 minutes.