Mathematical model (IMAGE) Nagoya University Caption Antigen testing can reduce, but not eliminate, the risk of COVID-19 clusters according to mathematical model Credit Kojima Kyoko Usage Restrictions This image may be used with appropriate credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.