About the Authors

Joseph T. Wu, Andrew Ho, Lai Ming Ho, Benjamin J. Cowling
Department of Community Medicine and School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China

Edward S. K. Ma, Daniel K. W. Chu, Po-Lai Ho, J. S. Malik Peiris
Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China

Cheuk Kwong Lee, Che Kit Lin
Hong Kong Red Cross Blood Transfusion Service, Hospital Authority, Hong Kong Special Administrative Region, People's Republic of China

Ivan F. N. Hung
Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China

Thomas Tsang
Centre for Health Protection, Department of Health, Government of the Hong Kong Special Administrative Region, People's Republic of China

Su-Vui Lo
Hospital Authority, Hong Kong Special Administrative Region, People's Republic of China

Su-Vui Lo, Gabriel M. Leung
Food and Health Bureau, Government of the Hong Kong Special Administrative Region, People's Republic of China

Yu-Lung Lau
Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China

J. S. Malik Peiris
HKU-Pasteur Research Center, Hong Kong Special Administrative Region, People's Republic of China

Corresponding Author

joewu@hku.hk

Competing Interests

BJC reports receiving research funding from MedImmune Inc., a manufacturer of influenza vaccines. JSMP is on the Editorial Board of PLoS Medicine. LMH is a member of the Scientific Committee on Advanced Data Analysis and Disease Modelling, Center for Health Protection, The Government of the Hong Kong Special Administrative Region. It is unpaid. The authors report no other potential conflicts of interest.

Author Contributions

Conceived and designed the experiments: JTW CKLee GML BJC JSMP. Performed the experiments: JTW AH ESKM DKWC PLH LMH. Analyzed the data: JTW AH BJC JSMP. Contributed reagents/materials/analysis tools: JTW CKLee IFNH CKLin TT SVL YLL GML BJC JSMP. Wrote the paper: JTW BJC JSMP. Enrolled patients: JTW IFNH CK Lee CK Lin YLL BJC. ICMJE criteria for authorship read and met: JTW AH ESKM CKLee DKWC PLH IFNH LMH CKLin TT SVL YLL GML BJC JSMP. Agree with the manuscript's results and conclusions: JTW AH ESKM CKLee DKWC PLH IFNH LMH CKLin TT SVL YLL GML BJC JSMP. Wrote the first draft: JTW BJC JSMP.