[Analytical research on Zheng Hao's Participation of the International Congress of Leprosy in 1909].

The Second International Congress was held in August, 1909 in Norway. Zheng Hao was dispatched by the Qing Government to attend the Congress as a representative. Through the Congress, Chinese people got to understand the latest ideas of prevention and treatment of leprosy in international medical field, and the approaches they adopted as well at that time. Meanwhile, Zheng Hao frankly confessed the backward status on the prevention and treatment in leprosy in China, and expressed the strong will to learn from the western world in this regard. This historical event, commonly ignored, manifested the fact that, beginning from the late Qing Dynasty, the involvement of Chinese medicine into the world medical trend as a whole was proceeding. By seizing this rare chance of participating the international meeting, the outstanding Chinese medical persons, with Zheng Hao as its representative, made up their mind to keep up with the international medical advanced pace, learning lessons, and pushing forward the development of Chinese medicine.