Epidemiological and clinical characteristics of the COVID-19 epidemic in Brazil

de Souza, W M and Buss, L F and Candido, D A and Carrera, J P and Li, S and Zarebski, A E and Pereira, R H M and Prete, C A and de Souza-Santos, A A and Parag, K V and Belotti, M C T D and Vincenti-Gonzalez, M F and Messina, J and da Silva Sales, F C and Andrade, P S and Nascimento, V H and Ghilardi, F and Abade, L and Gutierrez, B and Kraemer, M U G and Braga, C K V and Aguiar, R S and Alexander, N and Mayaud, P and Brady, O J and Marcilio, I and Gouveia, N and Li, G and Tami, A and de Oliveira, S B and Porto, V P G and Ganem, F and de Almeida, W A F and Fantinato, F F S and Macário, E M and de Oliveira, W K and Nogueira, M L and Pybus, O G and Wu, C H and Croda, J and Sabino, E C and Faria, N R (2020) Epidemiological and clinical characteristics of the COVID-19 epidemic in Brazil. Nature Human Behaviour, 4 (8). pp. 856-865. ISSN 2397-3374

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Official URL: https://doi.org/10.1038/s41562-020-0928-4

Abstract

The first case of COVID-19 was detected in Brazil on 25 February 2020. We report and contextualize epidemiological, demographic and clinical findings for COVID-19 cases during the first 3 months of the epidemic. By 31 May 2020, 514,200 COVID-19 cases, including 29,314 deaths, had been reported in 75.3% (4,196 of 5,570) of municipalities across all five administrative regions of Brazil. The R0 value for Brazil was estimated at 3.1 (95% Bayesian credible interval = 2.4–5.5), with a higher median but overlapping credible intervals compared with some other seriously affected countries. A positive association between higher per-capita income and COVID-19 diagnosis was identified. Furthermore, the severe acute respiratory infection cases with unknown aetiology were associated with lower per-capita income. Co-circulation of six respiratory viruses was detected but at very low levels. These findings provide a comprehensive description of the ongoing COVID-19 epidemic in Brazil and may help to guide subsequent measures to control virus transmission.

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