This may be one of the dumbest threads ever, which is no mean achievement on Atlas.
Here is an idea to ponder. Sex clubs should require that you show your monkeypox vax card as a requirement of entry. I mean, Dan and I went to an indoor concert about a month ago, and needed to show our Covid vax cards, so it is not like people are not already conditioned for this.
Cheers.
Define what establishments fall under your definition of "sex clubs."
Those allowing conduct that would facilitate the spread of the virus. A more snarky answer would be one knows it when one sees it.