Quote Originally Posted by Martin View Post
probably due primarily to this:

average population density for each state:
florida state: 353 people/sq. mile
new york state: 421 people/sq. mile

population density for each state's largest city (by population):
miami: 12,139 people/sq. mile
new york city: 26,403 people/sq. mile
I think NYC's reliance on mass transit played a big part in it as well. There was probably a lot of transmission on the subways before people realized how serious it was.