It is not violent, but it does hope to help end a deadly disease.

Facing the sky on the University of Washington campus, dozens of people become the face of an ad campaign hoping to stem the deadly affects of HIV.

Ed Chang will lay motionless for hours today. "This is harder than it looks," he said. "We're all trained, professional layer-downers." He's one piece of a human picture.

"So we're getting people to pose in the shape of a hammer and we're going to be stomping out HIV" said Gary Chovnick with Seattle HIV Vaccine Clinical Trials.

The campaign also showcases images of a can of bug spray and a boot made up of people laying down. It's all to inspire people to get involved in HIV research, Chovnich said, "Which is our ultimate goal, to have people help us test the vaccine and help us find a vaccine that might help prevent HIV infection."

These images hit advertisements on buses, and in weekly papers around the Seattle area in about a month.

Researchers say it's impossible for someone to contract HIV from the clinical vaccine. There's no HIV in any of the vaccines they work with. To find out how you can help, look for those ads, coming soon.