Salford's public health director has explained why regional restrictions should remain in place despite the number of deaths from coronavirus staying low.Rules prohibiting people from meeting with members of different households indoors or in private gardens are in force across most of Greater Manchester.Wigan and Stockport have now been released from the regional restrictions.But in Bolton and Trafford, where rules were due to be relaxed this week, the restrictions will remain in place due to a recent spike in cases of Covid-19.In Salford, there were 36.3 coronavirus cases per 100,000 people in the borough in the week ending August 29, up from 27.8 the previous week.But there has not been a Covid-related death recorded in Salford since.