Isolation of SARS-CoV-2 from COVID-19 Patients and an Asymptomatic Individual

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Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, China, in December 2019. Despite the recent introduction of vaccines against SARS-CoV-2, more effective vaccines and antiviral drugs must be developed. Here, we isolated five SARS-CoV-2 strains from four patients with coronavirus disease (COVID-19) and an asymptomatic individual using pharyngeal swabs, nasopharyngeal swabs, and sputum samples. Cytopathic effects in inoculated Vero cells were observed between days 3 and 7. SARS-CoV-2 infection was confirmed by quantitative reverse-transcription polymerase chain reaction (RT-qPCR) and next-generation sequencing. Phylogenetic analyses of the whole genome sequences showed that the virus isolates from the clinical samples belonged to the Wuhan and European lineages. These findings and the isolated viruses may contribute to the development of diagnostic tools, vaccines, and antiviral drugs for COVID-19.

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Hishiki, T., Usui, K., An, T., Suzuki, R., Sakuragi, J. I., Tanaka, Y., … Takasaki, T. (2022). Isolation of SARS-CoV-2 from COVID-19 Patients and an Asymptomatic Individual. Japanese Journal of Infectious Diseases, 75(3), 277–280. https://doi.org/10.7883/yoken.JJID.2021.292

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