Dunno, but the only person who ever openly said to me "Corona doesn't exist" was a black guy who spoke bad German and who approached me giving me compliments for my looks and my hair.
All this happened at a train station, in broad daylight.
He came over to me, I put on my mask and then he claimed "don't worry, there is no Corona" .
Eventually I walked away as this idiot would still not put on his mask.
Then he jumped across the train tracks, back to his friends who were playing loud ass music.
A couple minutes later police arrived and dissolved the group. Idk who called them but it was definitely for the better.
What I'm trying to say is: Bunch of weirdos these covid deniers are!