The World Health Organization says it has cleared the Pfizer-BioNTech coronavirus vaccine for emergency use, meaning poorer countries may soon get access to the shot already available in Europe and North America. Every country that has a drug regulatory agency will have to issue its own approval for any Covid-19 vaccine, but countries with weak systems usually rely on WHO to vet the shots.source https://timesofindia.indiatimes.com/world/rest-of-world/who-clears-pfizer-vaccine-for-emergency-use/articleshow/80054979.cms
