Hans-Peter Kohler, University of Pennsylvania (image) University of Pennsylvania Share Print E-Mail Caption Hans-Peter Kohler of the University of Pennsylvania. He and colleagues discovered that AIDS treatment can benefit those who are HIV-negative by quelling their fears about the disease. Credit University of Pennsylvania Usage Restrictions Must use accompanying credit information. Share Print E-Mail 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.