The outbreak realistically would have been contained in England

The infection spreads through direct contact, and since the infected cannot drive , their only way of spreading the virus is to walk or run to the next uninfected person. Outside southern and central England, much of the United Kingdom is rural , and gets more rural the further north you go. The infected would struggle to travel between the smaller towns and villages in the north of England, never mind spreading through southern Scotland (which is massively rural). Only central Scotland (Glasgow, Edinburgh, Fife, Falkirk etc) is quite heavily populated, but beyond that is a lot of wilderness, and I simply cannot see the epidemic ever taking hold in the Highlands at all. How could it spread up to Inverness for example ?

Anyone with knowledge of British geography should be stumped at this.

I think realistically speaking , much of Scotland would have survived , as would many parts of Wales too. I get the film lore has all of Great Britain overrun, I’m just putting my own views on what realistically would have happened . I think the Rage Virus could likely have been contained to England.