1. Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
2. Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong Special Administrative Region
3. Department of Pathology, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong Special Administrative Region
4. Department of Pathology, United Christian Hospital, Kowloon, Hong Kong Special Administrative Region