Feasibility, Acceptability, and Cost of Community-Based Self-monitoring among Sex Workers Testing Positive for COVID-19 in Zimbabwe: A Mixed-methods Study

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Abstract Background Sex workers struggled to adhere to isolation guidelines following COVID-19 diagnosis because of financial pressure to keep working. We co-developed and evaluated for feasibility, acceptability, and cost an intervention for promoting isolation and community-based self-monitoring for COVID-19. Methods Sex workers testing positive for COVID-19 received the following co-developed intervention: i) risk-differentiated support, including immediate hospitalization and/or treatment for serious illness, and community-based self-monitoring for those at risk of progressing to severe illness, ii) food packs lasting two weeks. Using Proctor’s Framework, we interviewed purposively selected health-workers and sex workers before intervention implementation (26 sex workers and 24 health workers) and during implementation (8 sex workers of whom 5 tested positive, and 5 health workers) to evaluate the intervention. We determined intervention development and implementation costs using program data. Results The intervention was implemented between March-June 2023. Sex workers and health workers reported that the intervention was highly acceptable and was implemented with fidelity. Food packs were highly appreciated; participants said they promoted isolation although vulnerability to non-food financial pressures persisted. Unanticipated impacts were increased testing uptake following introduction of food packs. Self-monitoring at home was acceptable although fear of stigma prevented some participants from seeking the needed support. The cost per sex worker testing positive was $49 and $54 respectively excluding/including intervention co-development costs. Conclusion A co-developed intervention for promoting isolation and community-based self-monitoring for COVID-19 was feasible and acceptable, with costs comparing favorably with similar interventions. Addressing stigma could optimise implementation and potential for future pandemics.

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