1 Department of Infection, Division of Infection and Immunity, Centre for Clinical Microbiology, University College London, London, UK; NIHR Biomedical Research Centre, University College London Hospitals NHS Foundation Trust, London NW1 OPE, UK. Electronic address: a.zumla@ucl.ac.uk.
2 Infectious Diseases Department, Centro Hospitalar Universitário de São João, Porto, Portugal.
3 The Royal Veterinary College, North Mymms, Hatfield, Hertfordshire, UK.
4 Irrua Specialized Teaching Hospital, Irrua, Nigeria.
5 Congolese Foundation for Medical Research, Brazzaville, Republic of the Congo.
6 Institute for Clinical Medicine, Aarhus University, Aarhus, Denmark.