Comments on: Pfizer, Moderna COVID-19 vaccines highly effective after first shot in real-world use – U.S. study /1412838/pfizer-moderna-covid-19-vaccines-highly-effective-after-first-shot-in-real-world-use-u-s-study Latest Philippine ΊΪΑΟΙη for Filipinos Tue, 30 Mar 2021 06:41:05 +0800 hourly 1 https://wordpress.org/?v=6.5.5