MAYOR Edwin Olivarez, in his bid to slow down the rapid spread of the coronavirus, on April 20, rolled out its citywide Covid-19 mass testing to identify possible carriers of infection with symptoms and high risk individuals such as the frontline workers in various testing sites located in Parañaque City College in Brgy. San Dionisio, Parañaque National High School main campus also in Brgy. San Dionisio, San Antonio High School in Brgy. San Antonio and Arcadio National High school in Brgy. San Martin De Porres. Mass testing is also served in Ospital ng Parañaque (main) in Brgy. La Huerta.