[1
]Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London,
United Kingdom
[2
]Division of Epidemiology & Biostatistics, School of Public Health, University of California,
Berkeley
[3
]MRC Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for
Disease and Emergency Analytics, and Department of Infectious Disease Epidemiology,
Imperial College, London, United Kingdom