Min Chen ⁎, 1
This author contributed equally to this work.

Yunnan Provincial Key Laboratory of Public Health and Biosafety & Health Laboratory Center, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
*Correspondence to: Yunnan Center for Disease Control and Prevention, No 158, Dongsi Street, Xishan District, Kunming 650022, Yunnan Province, China.Yunnan Center for Disease Control and PreventionNo 158, Dongsi Street, Xishan DistrictKunmingYunnan Province650022China
Yanling Ma 1
This author contributed equally to this work.
, Huichao Chen, Jie Dai, Lijuan Dong, Manhong Jia ⁎ 
Yunnan Provincial Key Laboratory of Public Health and Biosafety & Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
∗Correspondence to: Yunnan Center for Disease Control and Prevention, No 158, Dongsi Street, Xishan District, Kunming 650022, Yunnan Province, China.Yunnan Center for Disease Control and PreventionNo 158, Dongsi Street, Xishan DistrictKunmingYunnan Province650022China
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