FILE PHOTO: A nurse prepares to vaccinate healthcare workers at Gleneagles hospital, during the coronavirus disease (COVID-19) outbreak, in Singapore January 19, 2021. REUTERS/Edgar Su/File PhotoSINGAPORE (Reuters) – Singapore received its first batch of the COVID-19 vaccine made by China’s Sinovac Biotech on Tuesday, its health ministry said, although the shot is still awaiting approval