Distribution and determinants of COVID-19 seroprevalence in a hard-to-access health district in Mali - Sekou Oumarou Thera; Mady Cissoko; Jordi Landier; Zoumana Doumbia; Amagoron Mathias Dolo; Siriman Traore; Abdoul Karim Sangare; Ibrahima Berthe; Ismaila Thera; Hadiata Berthe; Elisabeth Sogodogo; Karyn Coulibaly; et al. (PLOS Global Public Health)