1. National Institute of Parasitic Disease China CDC, Shanghai, China;
2. WHO Collaborating Centre for Tropical Diseases, Shanghai, China;
3. Chinese Center for Tropical Diseases Research, Shanghai, China;
4. HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China;
5. National Center for International Research on Tropical Diseases, Ministry of Science and Technology, Shanghai, China;
6. Department of Parasite Control, Qinghai Provincial Institute for Endemic Diseases Prevention and Control, Xining, China;
7. Chinese Center for Disease Control and Prevention, Beijing, China