Categories Articles A study backed by Mark Zuckerberg reveals companies are selling antibody tests for the coronavirus with big potential for error Post author By crystalg Post date April 28, 2020 Business Insider Feedburner Tags antibody, backed, companies, coronavirus, error, Mark, Potential, Reveals, selling, Study, Tests, Zuckerberg ← How to Create a Symbiotic CEO and CFO Partnership → Ignoring Hospital Policy, Vice President Pence Tours Mayo Clinic Without Mask