I don't believe the infection rates in the remote Scottish Isles are higher the Major cities.
They could easily be. A remote area with only 100 residents might have 2 positive cases - a rate of 20,000 per million. Uist has 45 cases out of a population of just under 1300, a rate of 34000 / mill.
Agree. Within the confines of a small geographic area, if the Lighthouse keeper on Sule Skerry Stack is infected then there's a high risk of the Changeover Lighthouse keeper contracting Covid.
But conversely in the sparsely populated large geographic area of the Scottish Highlands the risk of infection will be far less than in the densely populated parts of the Highlands, yet the map implies the risk throughout the North of Scotland is the same.
That's also why I'm happier to live in a small village than a City.
