[1] Yale University,Department of Chronic Disease Epidemiology, Social and Behavioral Sciences Division, Yale School of Public Health
[2] Columbia University,Department of Sociomedical Sciences, Mailman School of Public Health
[3] Verona University Hospital,Department of Pathology, Infectious Diseases Section
[4] London School of Hygiene and Tropical Medicine,Department of Social and Environmental Health Research
[5] University of Tromso,Department of Community Medicine
[6] Robert Koch Institute,Department of Infectious Disease Epidemiology