To be on topic – it seems you can catch two variants of covid at the same time. Only one recorded case so far, but not everyone's infection gets tested, so it's possibly more common.

On swearing, I remember a very self-righteous neighbour complaining about the language she had heard in the street, saying:
"I was so shocked. I have never heard such language before in my life, and I don't know what those words mean!"

Yeah ... right.