The Sunday Telegraph. Officials are looking at NHS data on vulnerable groups in preparation for a second wave, it is reported.These groups could include obese Brits and the over 50s.A cabinet minister said: “They are understanding that age does come into it."He continued: “The shielding cohort is way too broad.“You can’t say that every fat person has to shield – it will be more subtle.”Since the beginning of August, millions of shielding individuals were finally told they could leave their homes.For some, it was the first time in four months.However, in Northern England, tight restrictions have been imposed on Greater Manchester, parts of Lancashire and West Yorkshire.The Northern lockdown aimed to reduce the rates of infection in the areas.