Siquijor vaccinates 80% of A1 population as of May 21 Philippine Information Agency 01 Jun 2021, 20:38 GMT+10 SIQUIJOR, June 1 (PIA) -- At least 80 percent of the eligible A1 population (health workers) and roughly 20 percent of A2 or senior citizens have been vaccinated with either Sinovac and AstraZeneca vaccines as of May 21 in the province of Siquijor. In an interview with the Philippine Information Agency (PIA) here, DOH-7 Provincial Medical Officer Dr. Mylene Masayon Infante said simultaneous vaccination activities are ongoing in the six local government units in the province. She encouraged all eligible populations to avail of the vaccination jabs. Infante encouraged all senior citizens to also get their shots.