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The delta variant has a mutation that’s worrying experts

Delta, which was dubbed a “variant of concern” by the World Health Organization in May, remains globally dominant.

AY.4.2 is being identified in an increasing number of U.K. Covid cases, with some suggesting it could be a factor in the country’s growing health crisis that has prompted some doctors to call for Covid restrictions to be reimposed.

The delta subtype is reported to be 10-15% more transmissible than the standard delta variant, but it is too early to say for certain whether it has been causing a spike in cases in the U.K.

Reference: CNBC