A new Covid variant that is behind a resurgence in hospital admissions may be more deadly than previously thought, research suggests.BA.2.86 — or 'Pirola' — is a mutation on the BA.2 subvariant and is the , which is responsible for more than three in five Covid cases as of .Both have around 60 more spike protein mutations than the original and over 30 more than other Omicron variants such as BA.2 and XBB.1.5.
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