COVID-19 Pandemic in Rio de Janeiro, Brazil: A Social Inequality Report.

: To perform a retrospective report on the lethality of COVID-19 in different realities in the city of Rio de Janeiro (RJ). : We accomplished an observational study by collecting the data about total confirmed cases and deaths due to COVID-19 in the top 10 high social developed neighborhoods and top 10 most populous favelas in RJ to determine the case-fatality rate (CFR) and compare these two different realities. : CFR was significatively higher in poverty areas of RJ, reaching a mean of 9.08% in the most populous favelas and a mean of 4.87% in the socially developed neighborhoods. : The social mitigation measures adopted in RJ have benefited only smaller portions of the population, excluding needy communities.