[1] Xiamen Univ, Sch Publ Hlth, State Key Lab Mol Vaccinol & Mol Diagnot, Xiamen 361102, Fujian, Peoples R China
[2] Shanghai Jinshan Dis Ctr Prevent & Control, Dept Environm & Occupat Med, Shanghai 201599, Peoples R China
[3] Huzhou Ctr Dis Prevent & Control, Dept Environm & Occupat Hlth, Huzhou 313000, Zhejiang, Peoples R China