Hand washing used to be controversial. Before Ignaz Semmelweis did his groundbreaking work in proving that disease spread when doctors didn’t wash before and after treating patients, hygiene was ignored. In fact, it took decades for the system to change. Today, of course, it’s understood that doctors, food service workers and everyone else ought to […]
This entry originally appeared at seths.blog/2021/05/good-fences, and may be a summary or abridged version.