1. Department of Microbiology, Queen Mary Hospital, Hong Kong Special Administrative Region, China
2. State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
3. Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
4. Department of Clinical Microbiology and Infection, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Guangdong Province, China
5. Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong Special Administrative Region, China
6. Department of Medicine & Geriatrics, Ruttonjee Hospital, Hong Kong Special Administrative Region, China
7. Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China