A link? To what? That person told me that more or less personally and I know her for a while now (and I am not going to disclose her on here, so treat the whole thing as unbased hearsay if you like). Happened two days ago. She was given a corona virus hotline number by some university official, and after a day they called her back.

When she explained her background (having been back from Rome, Student, etc) thr lady on the other end asked whether she is registered in the Netherlands, she denied and the woman said: then we will not test you and hung up without further words.

Of course that is how she told the story, and she was quite angry and cynical about the whole thing, but in my judgement she didn't invent it or anything.