1 Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA.
2 Department of Biomedical Data Science, Stanford University, Stanford, CA, USA.
3 Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK.
4 Department of Medicine and Division of HIV, Infectious Diseases, and Global Medicine, San Francisco, CA 94110, USA. Electronic address: [email protected].