Genomic characterization of SARS-CoV-2 and its association with clinical outcomes: a 1-year longitudinal study of the pandemic in Colombia

Ángela María Ruiz-Sternberg, Henry Mauricio Chaparro-Solano, Ludwig L. Albornóz, Ángela María Pinzón-Rondón, Juan Mauricio Pardo-Oviedo, Nicolás Molano-González, Diego Andrés Otero-Rodríguez, Fabio Andrés Zapata-Gómez, Jubby Marcela Gálvez

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)


Objectives: This study aimed to explore associations between the molecular characterization of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and disease severity in ambulatory and hospitalized patients in two main Colombian epicentres during the first year of the coronavirus disease 2019 pandemic. Methods: In total, 1000 patients with SARS-CoV-2 infection were included in this study. Clinical data were collected from 997 patients, and 678 whole-genome sequences were obtained by massively parallel sequencing. Bivariate, multi-variate, and classification and regression tree analyses were run between clinical and genomic variables. Results: Age >88 years, and infection with lineages B.1.1, B.1.1.388, B.1.523 or B.1.621 for patients aged 71–88 years were associated with death [odds ratio (OR) 6.048036, 95% confidence interval (CI) 1.346567–32.92521; P=0.01718674]. The need for hospitalization was associated with higher age and comorbidities. The hospitalization rate increased significantly for patients aged 38–51 years infected with lineages A, B, B.1.1.388, B.1.1.434, B.1.153, B.1.36.10, B.1.411, B.1.471, B.1.558 or B.1.621 (OR 8.368427, 95% CI 2.573145–39.10672, P=0.00012). Associations between clades and clinical outcomes diverged from previously reported data. Conclusions: Infection with lineage B.1.621 increased the hospitalization and mortality rates. These findings, plus the rapidly increasing prevalence in Colombia and other countries, suggest that lineage B.1.621 should be considered as a ‘variant of interest’. If associated disease severity is confirmed, possible designation as a ‘variant of concern’ should be considered.

Idioma originalInglés estadounidense
Páginas (desde-hasta)91-100
Número de páginas10
PublicaciónInternational Journal of Infectious Diseases
Fecha en línea anticipadadic. 15 2021
EstadoPublicada - mar. 2022

Áreas temáticas de ASJC Scopus

  • Microbiología (médica)
  • Enfermedades infecciosas


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