Tu Youyou is a lady. Why does Wan Gang call her "Mr. Tu Youyou"?

Sir, it's not for men. Anyone who is praised by most people morally or academically can be called Mr ... During the Republic of China, this was normal, such as Mr Soong Ching Ling, Mr He Xiangning and Mr Jiang Yang (the wife of Qian Zhongshu). They are wise men to learn, benevolent people to live and brave people to live. Actually, I don't think Tu Youyou won the Nobel Prize because of her alone. Before the emergence of specific drugs, malaria was an important factor in human death. For the treatment of malaria, western society has always used cinchona cream, but the evolution and drug resistance of malaria make cinchona cream weaker and weaker. China's artemisinin perfectly solved this problem, but Tu Youyou did not initiate artemisinin research alone. In fact, at the beginning of the founding of the People's Republic of China, the military demand made China concentrate resources on the research of artemisinin, but only Tu Youyou could persist in the later period. This reminds me of China's research on "big planes". If I hadn't given up halfway, I think besides Airbus and Boeing, there should be China brand airplanes in the world.