@verroq is correct though, but that is a different subject than the one of the article. (Infectious) diseases generally spread more easily in higher population

@verroq is correct though, but that is a different subject than the one of the article. (Infectious) diseases generally spread more easily in higher population density. That's basic epidemiology, more contacts = opportunities, but it's of course more complicated than one single statement, disease spread models need a lot more variables than just population density to make useful predictions. https://en.wikipedia.org/wiki/Threshold_host_density https://en.wikipedia.org/wiki/Threshold_host_density http://pai.org/wp-content/uploads/2012/02/PAI-1293-DISEASE_compressed.pdf http://pai.org/wp-content/uploads/2012/02/PAI-1293-DISEASE_c... (PDF) http://www.britannica.com/science/infectious-disease/Population-density http://www.britannica.com/science/infectious-disease/Populat...