This is the second such approval from the WHO, which gave the Pfizer vaccine the green light in December
WHO: Global Tally of New COVID-19 Cases Declines for Fourth Straight Week
Last week, there were more than 3.1 million new cases globally, a 17 percent decline from the previous week
WHO Calls for New Measures to Identify COVID-19 Variants
New variants found in Britain and South Africa appear to be more contagious and have triggered new travel restrictions