• Cristiane Coimbra de Paula, Walkiria Shimoya-Bittencourt, João Pedro Castoldo Passos, Caroline Aquino Vieira De Lamare Paula, Karuppusamy Arunachalam, FontesCor Jesus FernandesCJFhttp://orcid.org/0000-0003-2756-0588Universidade Federal de Mato Grosso, Hospital Universitário Júlio Müller - Cuiabá (MT), Brazil., and Ruberlei Godinho de Oliveira.
• Centro Universitário de Várzea Grande - Varzea Grande (MT), Brazil.
• Rev Assoc Med Bras (1992). 2022 Mar 1; 68 (3): 344-350.

BackgroundCoronavirus disease 2019, which is caused by the new severe acute respiratory syndrome coronavirus 2, became a pandemic in 2020 with a mortality rate of 2% and high transmissibility, thus making studies with an epidemiological profile essential.ObjectivesThe aim of this study was to characterize the population that performed the severe acute respiratory syndrome coronavirus 2 molecular and serological tests in Carlos Chagas Laboratory - Sabin Group in Cuiabá.MethodsA retrospective cross-sectional study was carried out with all the samples collected from nasal swab tested by RT-PCR and serological for severe acute respiratory syndrome coronavirus 2 IgM/IgG from the population served between April and December 2020.FindingsIn the analysis period, 23,631 PCR-coronavirus disease 2019 examinations were registered. Of this total number of cases, 7,649 (32.37%) tested positive, while 15,982 (66.31%) did not detect viral RNA and 374 of the results as undetermined. The peak of positive RT-PCR performed in July (n=5,878), with 35.65% (n=2,096). A total of 8,884 tests were performed on serological test SOROVID-19, with a peak of 1,169 (57.16%) of the positive tests for severe acute respiratory syndrome coronavirus 2 in July.Main ConclusionsMolecular positivity and serological tests, both peaked in July 2020, were mostly present in women aged 20-59 years, characterizing Cuiabá as the epicenter of the Midwest region in this period due to the high rate of transmissibility of severe acute respiratory syndrome coronavirus 2.

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