Tesla Inc. Chief Executive Elon Musk, who has repeatedly played down the risk of the coronavirus since early in the pandemic, says he tested positive for Covid-19 and sought to raise doubts about the validity of such testing more broadly.
Mr. Musk said on Twitter a Thursday night saliva sample came back positive for the virus. He took the test after earlier rapid-response tests he had taken returned both positive and negative results.
The…
This post first appeared on wsj.com
