Participants’ distribution
| Country | HDSS | HCW | Persons living with HIV | Family member of the deceased | Country total | ||
| Never ART | On ART | LTFU | |||||
| Kenya | Kisumu | 8 | 10 | 13 | 8 | 11 | 50 |
| Tanzania | Kisesa | 7 | 13 | 14 | 4 | 6 | 44 |
| Malawi | Karonga | 5 | 9 | 27 | 4 | 6 | 51 |
| Zimbabwe | Manicaland | 4 | 16 | 35 | 8 | 6 | 69 |
| South Africa | uMkhanyakude | 19 | 16 | 17 | 6 | 6 | 64 |
| Total | 43 | 64 | 106 | 30 | 35 | 278 | |
ART, antiretroviral therapy; HCW, healthcare worker; HDSS, health and demographic surveillance sites; LTFU, lost to follow-up from an HIV clinic for >90 days.