Community health workers for health systems resilience during COVID-19: protocol for qualitative evidence synthesis.

INTRODUCTION: COVID-19 exposed the fragility of health systems, where even the most basic health services in high-income and low-income and middle-income nations could not withstand the health systems shock due to the pandemic. Community health workers (CHWs) can contribute to improving the resilience of health systems, specifically to withstand shocks and emergencies and to avoid disruptions of routine service delivery. We aim to explore and understand the 'individual' and 'systems-level' resilience factors that shaped the involvement of CHWs in the COVID-19 response.

METHODS AND ANALYSIS: We will search five electronic databases (PubMed, Cochrane Library, EMBASE, CINAHL and SciELO (Spanish)) and conduct citation screening to identify studies on CHWs' response during the COVID-19 pandemic. Two review authors will independently screen the studies for inclusion and to extract data. The software Rayyan will be used to assist in screening the relevant literature. A thematic analysis approach will be followed to analyse and synthesise the qualitative evidence. The quality of the included studies will be critically assessed using the Critical Skills Appraisal Programme Tool. We will use the GRADE CERQual(Grading of Recommendations, Assessment, Development, and Evaluations - Confidence in the Evidence from Reviews of Qualitative Research) approach to assess certainty in the synthesised findings of the qualitative evidence.

ETHICS AND DISSEMINATION: This study will be conducted on published evidence, with no living participants; thus, no ethical approval is required. The final review will be submitted and published in a peer-reviewed journal. We will also develop a policy brief to communicate the review findings to the stakeholders.