Earlier quoted context omitted.
I don't think so. And his tweets aren't really aging well... https://twitter.com/elonmusk/status/1240754657263144960
He also implied there won't be more than 0.1% of the US population infected overall, https://twitter.com/elonmusk/status/1239755145233289217
Where exactly do you see him saying that total prevalence would be 0.1%?