About the Authors

Yi-hong Xie

Affiliations Guangxi Zhuang Autonomous Region Center for Disease Prevention and Control, Nanning, Guangxi, China, Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, HatYai, Songkla, Thailand, International Field Epidemiology Training Program (IFETP), Bureau of Epidemiology, Ministry of Public Health, Bangkok, Thailand

Virasakdi Chongsuvivatwong

cvirasak@gmail.com

Affiliation Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, HatYai, Songkla, Thailand

Zhenzhu Tang

Affiliation Guangxi Zhuang Autonomous Region Center for Disease Prevention and Control, Nanning, Guangxi, China

Edward B. McNeil

Affiliation Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, HatYai, Songkla, Thailand

Yi Tan

Affiliation Guangxi Zhuang Autonomous Region Center for Disease Prevention and Control, Nanning, Guangxi, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YX VC. Analyzed the data: YX VC EM. Contributed reagents/materials/analysis tools: ZT YT YX. Wrote the paper: YX. Interpreted the results: YX VC.