Genetic tracing ‘barcode’ is rapidly revealing COVID-19’s journey and evolution



Major SARS-CoV-2 genetic subtypes in countries/regions with the most sequences (indicating date subtype was first sequenced in that country/region). Subtypes with less than 5% abundance are plotted as “OTHER.” Credit: Drexel University
https://phys.org/news/2020-04-genetic-barcode-rapidly-revealing-covid-.html

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