Home Business Gates-backed at-home COVID tests await approval as U.S. FDA OKs separate kit Business Gates-backed at-home COVID tests await approval as U.S. FDA OKs separate kit By Genpie - May 16, 2020 153 0 Facebook Twitter Google+ Pinterest WhatsApp An at-home coronavirus testing project in Seattle backed in part by the Bill and Melinda Gates Foundation remains in limbo as U.S. regulators on Saturday announced approval of a separate home-based sample collection kit.