HIV Trimer (IMAGE) Scripps Research Institute Caption The study is the first to show a high-resolution version of the HIV trimer, which the virus uses to enter host cells, in its natural form. Credit Photo courtesy of The Scripps Research Institute Usage Restrictions None 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.