About the Authors

Min Kang

kangmin@yeah.net

Affiliation Center for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China

Haojie Zhong

Affiliation Center for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China

Jianfeng He

Affiliation Center for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China

Shannon Rutherford

Affiliation Centre for Environment and Population Health, School of Environment, Griffith University, Brisbane, Australia

Fen Yang

Affiliation Center for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MK HJZ JFH. Performed the experiments: MK FY. Analyzed the data: MK. Contributed reagents/materials/analysis tools: MK FY JFH. Wrote the paper: MK SR.