HIV-1 Accumulation (image) University of Missouri-Columbia Caption This microscopic image of a human cell shows the accumulation of HIV-1 particles on the surface of the cell. University of Missouri researchers have found that a family of proteins that promotes virus entry into cells also has the ability to block the release of HIV and other viruses. Credit University of Missouri Health System Usage Restrictions None 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.