Scientists in React study suggest virus from dominant Delta variant more likely to cause asymptomatic infections
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.