Emergence of SARS-CoV-2 Variant B.1.575.2, Containing the E484K Mutation in the Spike Protein, in Pamplona, Spain, May to June 2021
Open Access
- 8 September 2021
- journal article
- research article
- Published by American Society for Microbiology in Journal of Clinical Microbiology
- Vol. 59 (12), e0173621
- https://doi.org/10.1128/jcm.01736-21
Abstract
With the emergence of new SARS-CoV-2 variants and the acquisition of novel mutations in exiting lineages, the need to implement methods capable of monitoring viral dynamics arises. We report the emergence and spread of a new SARS-CoV-2 variant within B.1.575 lineage containing the E484K mutation in the spike protein (named B.1.575.2) in a region of Northern Spain between May and June 2021. SARS-CoV-2 positive samples with cycle threshold value less than or equal to 30 were selected to screen of presumptive variants using the TaqPathTM COVID-19 RT-PCR kit and TaqManTM SARS-CoV-2 Mutation Panel. Confirmation of variants was performed by whole genome sequencing. Of the 200 samples belonging to the B.1.575 lineage, 194 (97%) corresponded to the B.1.575.2 sub-lineage, which was related to the presence of the E484K mutation. Of 197 cases registered in GISAID EpiCoV database as lineage B.1.575.2, 194 (99.5%) were identified in Pamplona (Spain) This report emphasizes the importance of complementing surveillance of SARS-CoV-2 with sequencing for the rapid control of emerging viral variants.Keywords
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