Question

In which population would you expect disease to spread more quickly?

Answer 1

In an urban area, where there are loads of people „packed” into a small area (like the former Kowloon Walled city in Hong Kong or Hong Kong in general for example).
In poor regions with a high density of people like some regions of India.

Answer 2

In more densely populated urban areas. This is because disease can spread much faster among people who live in close proximity to each other.