1 Respiratory Sciences, University of Leicester, Leicester, UK; Clinical Microbiology, Leicester Royal Infirmary, Leicester, UK. Electronic address: Julian.tang@uhl-tr.nhs.uk.
2 Clinical Microbiology, Leicester Royal Infirmary, Leicester, UK.
3 JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Research Institute of The Chinese University of Hong Kong, Shenzhen, China; Hong Kong Institute of Asia-Pacific Studies, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.