The document discusses reports that tetanus vaccinations in several countries, including Mexico, Nicaragua and the Philippines, contained human chorionic gonadotropin (hCG), a hormone that can cause a woman's body to develop antibodies rendering her incapable of sustaining a pregnancy. Tests found hCG present in samples of the tetanus vaccine, though health organizations denied the vaccines were meant to induce sterility. The document also provides information on organizations involved in anti-fertility vaccine programs, funding sources, and a sample vaccine exemption form.