1 Washington University in St. Louis, St. Louis, Missouri, United States of America.
2 Universidade Eduadrdo Mondlane, Maputo, Mozambique.
3 University of Zambia, Lusaka, Zambia.
4 University of California San Francisco, San Francisco, California, United States of America.
5 PEPFAR, Bureau of Global Health Security and Diplomacy, US State Department National Public Health Institute, Washington DC, United States of America.