Delta AY.4.2 COVID variant less likely to display any symptoms, says UK study
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A mutation of the Delta variant of COVID-19, classed in the UK as a Variant Under Investigation (VUI) amid concerns of its increased transmissibility, is less likely to display any symptoms, a new real-world study said on Thursday. The latest results from the long-running Real-time Assessment of Community Transmission [REACT-1] study show the prevalence of the Delta AY.4.2 variant has been growing at a rate of 2.8% a day since September.