File photo shows Bill Gates, co-chair of the Bill & Melinda Gates Foundation, receiving an exclusive interview with Xinhua in Seattle, the United States, on Nov. 13, 2019. (Xinhua/Qin Lang)
BEIJING, Feb. 22 (Xinhua) -- Chinese President Xi Jinping has written back to Bill Gates, co-chair of the Bill & Melinda Gates Foundation, after receiving a letter from the U.S. business leader on the novel coronavirus disease (COVID-19).■
