How did
European infrastructure assist in
the spread of the plague?
Read MANY of these search results. You should be able to name SEVERAL different aspects of European infrastructure in your answer.
https://www.google.com/search?q=did+European+infrastructure+assist+in+the+spread+of+the+plague&oq=did+European+infrastructure+assist+in+the+spread+of+the+plague&aqs=chrome..69i57j69i60.1306j0j7&sourceid=chrome&ie=UTF-8