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Predominant SARS-CoV-2 variants in Indonesia during pre-Delta (1 March–1 June 2020) and Delta (2 June–1 October 2022) periods. B.1.466.2 and AY.23 (Delta sub-lineage) were the dominant variant during pre-Delta (a) and Delta (b) period, respectively. Variant AY.23 followed by B.1.466.2 were the most dominant variant during all periods (c).
