1 University of Auckland, Auckland 1142, New Zealand. Electronic address: [email protected].
2 University of Auckland, Auckland 1142, New Zealand.
3 International Union against Tuberculosis and Lung Disease, Paris, France; Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, Taipei, Taiwan; School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
4 The Epidemiological Laboratory, Khartoum, Sudan.
5 Respiratory and Allergy Units, Arrixaca University Children's Hospital, University of Murcia & Biohealth Research Institute of Murcia, Murcia, Spain.
6 Woolcock Institute of Medical Research, University of New South Wales, Sydney, NSW, Australia.
7 International Union against Tuberculosis and Lung Disease, Paris, France; Liverpool School of Tropical Medicine, Liverpool, UK.
8 London School of Hygiene & Tropical Medicine, London, UK.