Clinical human trials for a Covid-19 vaccine co-developed by Singapore scientists and a US pharmaceutical firm have started. Science correspondent Audrey Tan tells us about the developments, as she gets a first look. Watch the full episode of The Big Story: • First look at upcoming S'pore human trials... #thebigstory #covid19 #vaccine SUBSCRIBE ➤ http://bit.ly/FollowST -------------------- WEBSITE ➤ http://www.straitstimes.com TWITTER ➤ / stcom FACEBOOK ➤ / thestraitstimes INSTAGRAM ➤ / straits_times PODCASTS ➤ https://omny.fm/shows/st-bt/playlists The Straits Times, the English flagship daily of SPH, has been serving readers for more than a century. Launched on July 15, 1845, its comprehensive coverage of world news, East Asian news, Southeast Asian news, home news, sports news, financial news and lifestyle updates makes The Straits Times the most-read newspaper in Singapore.