1. Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, Peoples Republic of China
2. Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, PR China
3. Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, Peoples Republic of China
4. Kunming Medical University, Kunming, Peoples Republic of China
5. Yunnan University, Kunming, Peoples Republic of China