'You might think you should run to one of England’s small villages, away from the densely packed medieval city. Don’t. While fleeing the city would be a wise choice when faced with most pathogens, human density doesn’t dictate the bubonic plague’s spread. Instead, it’s the ratio of fleas to humans that matters most. The result is that most rat-infested farming villages had higher mortality rates than England’s cities.'
(via The Browser)

https://www.smithsonianmag.com/history/could-you-survive-the-black-death-the-sack-of-rome-and-other-historical-catastrophes-180982313/?ref=thebrowser.com