INQUIRER.net looks back at how COVID-19 emerged from being a nameless disease to being the biggest health crisis the world had to face in modern history. March 1Global COVID-19 cases reach close to 800,000, with infections in nearly 100 countries. Nov. 18Pfizer and BioNTech said that a completed study of their experimental COVID-19 vaccine showed it was 95 percent effective. Nov. 23The coronavirus vaccine developed by drug firm AstraZeneca and Oxford University has shown 70 percent effectivity in trials involving 23,000 people. Dec. 19The U.S. Food and Drug Administration gave Moderna’s COVID-19 vaccine emergency use authorization.

Source: Philippine Daily Inquirer December 31, 2020 23:27 UTC