Social distancing may explain how tens of thousands survived a typhus outbreak in the Warsaw Ghetto
Daily Mail
Nazi forces ultimately crammed more than 460,00 people into the 1.3 square mile area of the Ghetto, which was created in Occupied Poland in late 1940.
https://www.dailymail.co.uk/sciencetech/article-8557607/Social-distancing-explain-tens-thousands-survived-typhus-outbreak-Warsaw-Ghetto.html?ns_mchannel=rss&ns_campaign=1490&ito=1490