direct to your inboxMore than 140 cases of Covid-19 have been found as part of localised mass testing in Manchester - though none involve a ‘variant of concern’ found in parts of the city so far.Testing programmes in the north and south of the city have been successful in the ongoing efforts to prevent people unknowingly spreading the virus.But public health officials are ‘frustrated’ with the speed at which positive tests are being analysed by laboratories to see if they matched the E484k