International expansion of a novel SARS-CoV-2 mutant
Abstract
Letter to the editor. There is no abstract. The summary was showed: SARS-CoV-2 has inevitably mutated during its pandemic spread to cause unpredictable effects on COVID-19 and complicate epidemic control efforts. Here we report that a novel SARS-CoV-2 mutation (ORF3a) appears to be spreading worldwide, which deserves close attention.
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