Jews imprisoned in a ghetto during the second world war stamped out a big typhus outbreak using public health measures like those currently being used to fight covid-19
Source:
https://www.newscientist.com/article/2249578-how-a-jewish-ghetto-beat-a-typhus-epidemic-during-the-second-world-war/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home