LOS ANGELES–(BUSINESS WIRE)–XPRIZE, the world’s leader in designing and operating incentive competitions to solve humanity’s grand challenges, today announced the 20 finalist teams advancing in the $6 million XPRIZE Rapid Covid Testing prize, a competition to create newer, higher standards of COVID-19 testing to help society safely return to everyday activities. Finalist teams were selected out of a pool of 219 semifinalists following judging of a detailed questionnaire pertaining to each tea