WARNING: SOME PEOPLE MAY FIND THE INFORMATION IN THIS ARTICLE DISTURBING AND THE IMAGES GRAPHIC. Every year, some infants are circumcised. During this surgical procedure, part of the child’s protective penile tissue is removed. This tissue removed from his penis may be sold to companies and institutions seeking the rich human fibroblast cells and other cells it contains. Most people are unaware that for decades, vaccine companies have been using these foreskin cells to research, grow and develop vaccines.