Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/45426
Título : Dynamics of SARS-CoV-2 genome variants in the feces during convalescence
Autor: Xu, Yi
Kang, Lu
Shen, Zijie
Li, Xufang
Wu, Weili
Ma, Wentai
Fang, Chunxiao
Yang, Fengxia
Jiang, Xuan
Gong, Sitang
Zhang, Li
Li, Mingkun
Palavras-chave: COVID-19
Coronavirus
SARS-CoV-2
Intra-host variant
Hybrid capture
Variante intra-hospedeiro
Captura híbrida
Publicador: Elsevier
Data da publicação: 2020
Referência: XU, Y. et al. Dynamics of SARS-CoV-2 genome variants in the feces during convalescence. Journal of Genetics and Genomics, [S. l.], 2020. DOI: https://doi.org/10.1016/j.jgg.2020.10.002.
Abstract: In response to the current COVID-19 pandemic, it is crucial to understand the origin, transmission, and evolution of SARS-CoV-2, which relies on close surveillance of genomic diversity in clinical samples. Although the mutation at the population level had been extensively investigated, how the mutations evolve at the individual level is largely unknown. Eighteen time-series fecal samples were collected from nine COVID-19 patients during the convalescent phase. The nucleic acids of SARS-CoV-2 were enriched by the hybrid capture method. First, we demonstrated the outstanding performance of the hybrid capture method in detecting intra-host variants. We identified 229 intra-host variants at 182 sites in 18 fecal samples. Among them, nineteen variants presented frequency changes > 0.3 within 1-5 days, reflecting highly dynamic intra-host viral populations. Moreover, the evolving of the viral genome demonstrated that the virus was probably viable in the gastrointestinal tract during the convalescent period. Meanwhile, we also found that the same mutation showed distinct pattern of frequency changes in different individuals, indicating a strong random drift. In summary, dramatic changes of SARS-CoV-2 genome were detected in fecal samples during the convalescent period; whether the viral load in feces is sufficient to establish an infection warranted further investigation.
URI: https://www.sciencedirect.com/science/article/pii/S1673852720301697#!
http://repositorio.ufla.br/jspui/handle/1/45426
Idioma: en_US
Aparece nas coleções:FCS - Artigos sobre Coronavirus Disease 2019 (COVID-19)

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