China National Biotec Group (CNBG) and Sinovac Biotech said on Saturday (September 5) that four more countries have agreed to run late-stage human tests of their coronavirus vaccine candidates, as China steps up its efforts in the global race. Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en