Illustration of Antibody Attacking HIV (IMAGE) Radiological Society of North America Caption A radio-labeled human antibody binds to the viral gp41 protein expressed on the surface of the HIV-infected human lymphocyte and the cell is killed by alpha radiation delivered by the antibody. Credit Radiological Society of North America Usage Restrictions May use with proper 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.