The image on the right is a normal T-Cell which defends the immune system from infection. The image on the left is an HIV infected T-Cell.
These posters were distributed by Gay Man's Health Crisis and became a teaching tool used in the education of AIDS-related illness. It was also used as a personal visualization device, using positive focus to alleviate symptoms of the disease.

Nancy Burson in collaboration with Kunio Nagashima, Program Resources Inc./DynCorp at the National Cancer Institute-Frederick Cancer Research and Development Center, Copyright 1991. Both images were taken with the S-4000 Scanning Electron Microscope courtesy of Hitachi Scientific Intruments. Art Direction by Vincent Galiostro. Made possible by a grant from Creative Time Inc.