About the Authors
Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Giessen, Germany
Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People's Republic of China
Department of Microbiology and Tropical Medicine, George Washington University Medical Center, Washington, District of Columbia, United States of America
Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: TW GMD JVR MS. Performed the experiments: TW MS TH ZZ. Analyzed the data: TW MS TH. Contributed reagents/materials/analysis tools: JMD FJ. Wrote the paper: TW MS.