Members of Chinese mobile laboratory team work at a laboratory in Freetown, capital of Sierra Leone, Jan. 22, 2015. Chinese mobile laboratory team has analyzed 4,272 cases of Ebola virus. Since the outbreak of Ebola Virus Disease, China provided its aid in the first time and so far has sent successively several medical teams and four batches of emergency aid worth a total of 700 million yuan (around 112.2 million U.S. dollars) to the epidemic-hit countries, becoming one of the biggest donors to the infected areas and playing an important role in coping with the epidemic. (Xinhua/Xin Wenwen)