To me it ain't a "normal" person who can survey the disaster and take corrective action, as here and the next Apollo Mission. In some ways, to cope with such messes you gotta be supranormal.
See you next week!
(to reverse the title of the fun comedy It's About Time.)
After tales of Space Horror like 1968's The Green Slime and 1958's It! The Terror from Beyond Space, and considering the smallpox plague on Amerindians, it was only prudent to isolate astronauts after their return from the Great Beyond.