Abstract
OBJECTIVES: to relate sociodemographic characteristics with SARS-CoV-2 serology of minors under hemodialysis and their caregivers. METHODS: a cross-sectional, descriptive study with anti-SARS-CoV-2 Spike immunoassay analysis. RESULTS: ten patients and their companions were included before vaccination against COVID-19. The overall seroprevalence was 25% and 20% among patients, who had a mean age of 11.47 years, 70% of whom were male. All companions were women (100%), with a mean age of 38.41 years and 60% of mixed race. Half (50%) receive between 1 and 3 minimum wages, and 70% spend more than two hours commuting. As for the residences, all (100%) are made of masonry and have basic sanitation. CONCLUSIONS: the importance of routine tracking of COVID-19 cases and the impact of socioeconomic variables on the quality of life of children and family members is evidenced.