In a Spanish serological study, people staying home were found to be more infected than those who were essential workers and had to go to work. (4)
Hopefully at some point we will understand that the virus will follow its own curve regardless of what we try to do, after it has implanted in a country. Once it's coronavirus season again, infections will start rising again. It's taboo to say so for some reason...
A fun one for bonus: Six of 12 men wintering at an isolated Antarctic base sequentially developed symptoms and signs of a common cold after 17 weeks of complete isolation (5). If the virus can still spread after 17 weeks of complete isolation in an Antarctic base, it's foolish to think we can suppress coronavirus anywhere now that's it's endemic.
(1) https://www.spectator.co.uk/article/the-second-wave-appears-... — (2) https://www.telegraph.co.uk/news/2020/06/04/coronavirus-infe... — (3) https://ourworldindata.org/coronavirus-data-explorer?zoomToS... — (4) https://www.thelancet.com/journals/lancet/article/PIIS0140-6... — (5) https://www.jstor.org/stable/3862013