Assessing the impact of the COVID-19 pandemic among internally displaced persons in Burkina Faso, Mali and Niger: a cross-sectional study using respondent-driven sampling.

objectivesDocumenting evidence on global health strategies and programmes that provide safeguards for vulnerable populations and strengthen overall pandemic preparedness is essential. This study aimed to identify factors associated with adherence to COVID-19 mitigation measures, COVID-19-related symptoms and testing, as well as pandemic-related income loss among internally displaced persons (IDPs) in urban and remote areas of Burkina Faso, Niger and Mali.

designThis cross-sectional study used fixed-site respondent-driven sampling (RDS).

settingPrimary care settings across six urban and remote locations in Burkina Faso, Mali and Niger.

participants4144 internally displaced adults, who had been forced from their homes within 5 years of the survey, participated in the study. The survey was conducted between August and October 2021 in two selected locations in three countries: Kaya (n=700) and Ouahigouya (n=715) in Burkina Faso; Bamako (n=707) and Ménaka (n=700) in Mali; and Niamey (n=733), and Diffa (n=589) in Niger. Participants were included if they were born in the study countries, displaced due to conflict, violence or disaster, aged 18 years or older, and living or working in the study site for at least 1 month. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcomes measured were adherence to COVID-19 mitigation measures, presence of COVID-19 symptoms, COVID-19 testing and vaccination rates and pandemic-related income loss.

resultsAmong 4144 IDPs surveyed across 6 sites in Burkina Faso, Mali and Niger, over half (52%) reported experiencing at least one COVID-19 symptom in the preceding 2 weeks. However, 8% had ever been tested for COVID-19, and fewer than 5% had received a vaccine in all sites except Diffa, where 54% reported vaccination. While willingness to be vaccinated was high (ranging from 56.6% in Bamako to 89.5% in Niamey), access remained limited. Compliance with public health measures varied; for example, 41.7% of IDPs were able to maintain physical distance from non-household members, and just 60.2% reported wearing a mask. Chronic health conditions were consistently associated with higher odds of COVID-19 symptoms (Ménaka OR: 14.65; 95% CI: 7.36 to 29.17). Economic vulnerability was widespread, with more than half of IDPs in Bamako (58.1%) and Niamey (66.4%) reporting income loss due to the pandemic, and average monthly income declining by over 50% in most sites. IDPs in urban areas generally reported greater exposure to COVID-19 risk factors, while those in remote settings reported lower adherence and poorer access to basic preventive measures.

conclusionsThis is the first known RDS study to explore the impact of the COVID-19 pandemic on IDPs. Findings suggest that IDPs in urban areas may face heightened risks of exposure and infection, underscoring the need to prioritise them in public health efforts. Low testing and vaccination rates and significant income loss call for advocacy and economic relief to address these vulnerabilities. Future pandemic responses should integrate health interventions with targeted support, especially mitigating income loss to bolster IDPs' resilience.