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Tag Archives: vaccines

UK on high alert over new Delta variant

London, UK | Xinhua | The UK Health Security Agency (UKHSA) confirmed Friday that the Delta variant sub-lineage (Delta AY.4.2) was designated a Variant Under Investigation (VUI) on Oct. 20, 2021, and has been given the official name VUI-21OCT-01. The UKHSA said the designation was made on the basis that …

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