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"Each effort I put into new drug development can bring a little hope to people's health. If there's a medicine that is the first choice of doctors around the world, that would be my ideal medicine. I hope I can make such a medicine in my life," he said.

"David has done a fantastic job from the day he arrived, and we look forward to having his nomination officially confirmed," Trump said on Twitter.

"Elderly people are like children who want to be praised. It's not enough to focus on their food and living facilities, their spiritual needs should also be properly addressed," Hao said.

"Everybody is being exploited by the platform but everybody is happy to do it," Wu said. "One thing many viewers take away is how we are all being exploited by online platforms. I myself am always on Facebook, I am also on Twitter. There is something I get out of it.

"Experience and lessons in the history of humanity's fight against viruses tell us that working hand-in-hand is the vaccine that never expires," said Xing.