Retro-2 Fights Polyomavirus (IMAGE) Brown University Caption Brown University scientists have characterized, synthesized and tested versions of the compound Retro-2 and found it to be effective in lab tests at blocking the spread of multiple polyomaviruses. Credit Atwood/Sello labs, Brown University Usage Restrictions with credit License Licensed 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.