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Updated: Oct 5, 2025

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples
Published on: June 30, 2023
Whole-Genome Sequencing of SARS-CoV-2 Strains from Asymptomatic Individuals in India
Ambica Rangaiah1, Sathyanarayan Muthur Shankar1, Shashiraja Padukone1
1Department of Microbiology, Bangalore Medical College Research Institute, Bengaluru, Karnataka, India.
Abstract:
We performed targeted genome sequencing of 11 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) samples collected from asymptomatic individuals. These nasopharyngeal and oropharyngeal samples were collected during the first wave of coronavirus disease 2019 (COVID-19) in Karnataka, India. Nine strains were found to be Nextstrain clade 20B (PANGO lineage B.1.1.519, GISAID clade GR), and two were identified as clade 20A (PANGO lineage B.1.619, GISAID clade G). The spike protein mutation D614G was observed across all the sequenced strains.
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