facing faces (IMAGE) Penn State Caption Room ventilation can drastically change the rate of transmission from an infected person to another, even when spaced two meters apart. Credit Donghyun Rim, Penn State Usage Restrictions non commercial use only 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.