Predictors of the COVID-19 morbidity, severity and morbity in Arkhangelsk, Russia in 2020-2021

The study aimed to assess the seroprevalence of COVID-19 in the Arkhangelsk region of Russia in a year after the start of the pandemic, to estimate the population adherence to non-pharmaceutical interventions during the first year, and to investigate socioeconomic, behavioral and health-related characteristics associated with naturally acquired and vaccine-induced antibodies against COVID-19 as well as with the adherence to non-pharmaceutical interventions.