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Five Years of COVID-19 in Tocantins, Brazil: Epidemiology, Vaccination Impact, and SARS-CoV-2 Genomic Dynamics (2020 - 2025)

2025-10-21

Abstract excerpt

The coronavirus disease (COVID-19) pandemic in Tocantins, Brazil, exhibited distinct phases between 2020 and 2025, with high mortality concentrated in 2020–2021 and subsequent stabilization at residual levels. Using epidemiological data, statistical modeling, and genomic surveillance, we show that the crisis peaked in 2021, coinciding with the circulation of Gamma and Delta, when health system capacity was severel...

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Literature Corpus work
6195e418-f636-5086-9b1a-49cb7a8339cb
DOI
10.20944/preprints202510.1596.v1
Open publication

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