First Minister said the strain is spreading much faster and the Scottish Government will need to look at whether level 4 restrictions are sufficient.Governments across the UK scaled back plans to loosen the restrictions during Christmas due to the new covid variant.In Scotland, Sturgeon announced level 4, which is effectively lockdown, would be imposed from Boxing Day onwards for three weeks.This includes the near total shutdown of hospitality.Speaking at Holyrood, she referred to data which showed the prevalence of the new strain may be higher than previously thought.She referred to testing analysis on a random sample of people in Scotland, which looked for a proxy marker known as the 'S-Gene dropout'.She said: "There is continuing.