Devon having the highest number of diagnosed cases is interesting...
... In recent years there's been a population shift with the young moving to cities whilst those who are older tend to be in regional town and seaside areas.
This means that if COVID-19 affects the elderly more then there is going to be particular pressures in regional towns which perhaps don't have as many specialist skills as the bigger city hospitals.
The average age in the UK in 2018 was 40.2.
For England and Wales:
0-15 19.1%
16-64 62.5%
65+ 18.3%
For Devon
0-15 16.8%
16-64 59.4%
65+ 23.8%
Devon is one of the areas with the oldest population in the country.
to see demographics for other areas have a look at this website
Devon also has areas where the average age is above 49 years of age.
It also has one of the largest number of elderly people in raw numbers too.
You would expect Devon to have more problems with covid-19 compared with many other areas of the country.
It's interesting that Devon is showing the highest number of cases atm. Its location doesn't make it where you'd expect the outbreak to be showing first, because its not a metropolitan hub and doesn't have regional airports. What it does have is lots more people who are elderly though. Not only that but it is an expensive county to live so it has many more affluent pensioners who are more likely to travel than pensioners in cheaper areas of the country which have older demographics (your regional towns).
Early signs of a cluster appearing in Devon suggest that perhaps its being detected due to an older, travelling population rather than clusters popping up in the younger metropolitan cities.
An apparent absence of cases in more metropolitan areas with higher populations, therefore may in itself be a worry. Are these areas more like to have asymptomatic cases in younger people? It certainly begs a question which is potentially troubling.
If we start getting cases popping up using the sentinel system in cities, particularly if there's no history of travel, then I think we could have a much higher number of undetected cases than we realise.
This is very much a hypothesis but Devon popping up high on the list of number of cases, is something to keep an eye on.