Keeping global focus on the many challenges of respiratory tract infections

aCentre for Clinical Microbiology, Division of Infection and Immunity, University College London bNIHR Biomedical Research Centre, UCL Hospitals NHS Foundation Trust, London, UK cDepartment of Medicine & Therapeutics and SH Ho Research Centre for Infectious Diseases, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China Correspondence to David S. Hui, MD., FRCP, Department of Medicine & Therapeutics & SH Ho Research Center for Infectious Diseases, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong. E-mail: [email protected]