The main objective of the study is to assess the level of vaccination coverage (VC) against COVID-19 among migrants, homeless and travelling community, according to their living conditions and housing.

The secondary objectives are :

• to compare the estimated level of vaccination coverage in the different sites and strata (emergency shelters/hotels, camps, workers' hostels, on the street) with the estimated level in the general population of the same territory obtained from the French Health Insurance data (SIVAC).
• identify the obstacles and leverage of vaccination (i.e. mobile team) according to living conditions and habitat (socio-demographic factors, personal health history, vaccine adherence, local health policies, etc.).

Inclusion Criteria:

• Adult (18 years and older)
• People considered as homeless (homeless, living in a camp or squat) or
• Living in adapted housing (migrant workers' hostel) or
• Housed in residences of the National System or
• Housed in a social residence such as a 115 hotel or a social housing centre
• Freely and voluntarily consenting to participate

Exclusion Criteria:

• Refusal to participate in the study (non-consent).
• Language barrier with no in-person or telephone translation available.
• Impossibility to give free and informed consent (comprehension barrier, cognitive and/or psychiatric and/or addictive disorders, external pressure from family and friends, persons under guardianship, etc.).

migrants, homeless and travelling community

The results will be presented in a report to the Ministry of Health, the Haute Autorité de Santé and the various partners. The main findings of this study could potentially be compared with the findings of other ongoing studies, once they are completed. An abstract of the findings will be submitted for presentation at a scientific conference, and at least one manuscript will be submitted for publication in a peer-reviewed scientific journal.

Study partners