Scientists in React study suggest virus from dominant Delta variant more likely to cause asymptomatic infections
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An offshoot of the Covid Delta variant that is on the rise in England appears to be less likely to cause symptoms than the dominant form, researchers have revealed – although experts say the finding requires further scrutiny.
Scientists on the React-1 study analysed more than 100,000 swabs taken across England with the majority taken between 19 October and 5 November.