Elon Musk set up a COVID-19 antibody study at SpaceX and got 4,300 employees to take part, according to reports

https://www.businessinsider.com/elon-musk-spacex-covid-19-study-2021-2

• Elon Musk's company SpaceX has been regularly testing a group of employees for COVID-19 antibodies.
• 4,300 employees signed up for a study looking at possible links between antibodies and immunity.
• "People can have antibodies, but it doesn't mean they are going to be immune," said one of the study's authors.