COVID-19 vaccine hesitancy is frequent and can constitute a barrier to the dissemination of vaccines once they are available. Unequal access to vaccines may also contribute to socioeconomic inequalities with regard to COVID-19. We studied vaccine hesitancy among persons living in homeless shelters in France between May and June 2020 (n=235). Overall, 40.9% of study participants reported vaccine hesitancy, which is comparable to general population trends in France. In multivariate regression models, factors associated with vaccine hesitancy are: being a woman (OR=2.55; 95% CI 1.40-4.74), living with a partner (OR=2.48, 95% CI 1.17-5.41), no legal residence in France (OR=0.51, 95% CI 0.27-0.92), and health literacy (OR=0.38, 95% CI 0.21, 0.68). Our results suggest that trends in vaccine hesitancy and associated factors are similar among homeless persons as in the general population. Dissemination of information on vaccine risks and benefits needs to be adapted to persons who experience severe disadvantage.

Background Accumulating evidence suggests that the COVID-19 pandemic has negatively affected global mental health and well-being. However, the impact amongst homeless persons has not been fully evaluated. The ECHO study reports factors associated with depression amongst the homeless population living in shelters in France during the Spring of 2020. Methods Interview data were collected from 527 participants living in temporary and/or emergency accommodation following France's first lockdown (02/05/20 – 07/06/20), in the metropolitan regions of Paris (74%), Lyon (19%) and Strasbourg (7%). Interviews were conducted in French, English, or with interpreters (33% of participants, ∼20 languages). Presence of depression was ascertained using the Patient Health Questionnaire (PHQ-9). Results Amongst ECHO study participants, 30% had symptoms of moderate to severe depression (PHQ-9≥ 10). Multivariate analysis revealed depression to be associated with being female (aOR: 2.15; CI: 1.26-3.69), single (aOR: 1.60; CI: 1.01-2.52), chronically ill (aOR: 2.32; CI: 1.43: 3.78), facing food insecurity (aOR: 2.12; CI: 1.40-3.22) and participants’ region of origin. Persons born African and Eastern Mediterranean regions showed higher levels of depression (30-33% of participants) than those migrating from other European countries (14%). Reduced rates of depression were observed amongst participants aged 30-49 (aOR: 0.60; CI: 0.38-0.95) and over 50 (aOR: 0.28; CI: 0.13-0.64), compared to 18-29-year-olds. Limitations These data are cross-sectional, only providing information on a given moment in time. Conclusions Our results indicate high levels of depression among homeless persons during the COVID-19 pandemic. Predicted future instability and economic repercussions could particularly impact the mental health of this vulnerable group.

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Background: Persons experiencing unstable housing – including recently arrived migrants – are at elevated risk of contracting COVID-19 and suffer from high morbidity and mortality. In this context, the COVID-19 vaccine was foreseen as a promising way to control the pandemic and reduce social inequalities in this area. Understanding the motives of COVID-19 vaccine acceptability in people with unstable housing, including migrants, is therefore crucial to tailor public health communication and outreach. Thus, the main objective of our study was to investigate - both quantitatively and qualitatively – the motivations behind vaccine hesitancy in people experiencing unstable housing when vaccines became available in France.Methods: A cross-sectional study was performed in Spring 2021, using convergent mixed-methods approach. Participants were recruited from homeless shelters and day centres and face-to-face interviews were offered, with help, where necessary, from phone-based interpreters. Factors associated with motives for COVID-19 vaccine hesitancy were explored using logistic regression models. Qualitative data – collected through semi-structured individual interviews - were analysed via an inductive thematic approach. Both quantitative and qualitative data were then integrated. Results: Vaccine hesitancy was found to be at an elevated rate (58.0%). The three most reported motives of hesitancy were related to COVID-19 vaccine effectiveness, safety, and trust in information about the vaccine. Factors of elevated hesitancy comprised the interviewees’ age, level of education, French-language aptitude, feeling of worry about COVID-19, and time of residence in France. Generic distrust in official information was a shared associated factor for the 3 motives of hesitancy. This result was expanded upon by the interview data where participants described having differential trust depending on who is recommending the vaccination. Another emerging key theme related to hopes that the vaccine would release them from the burden of the pandemic. Conclusions: Our mixed methods study provides a comprehensive understanding of COVID-19 vaccine hesitancy among persons with unstable housing in France in Spring 2021. Elevated levels of hesitancy remain a public health concern as “No one is safe until everyone is safe”. The already established role of trust in vaccine hesitancy is still to be adequately addressed as a potentially effective route of intervention.