The International Society for Stem Cell Research (ISSCR), the largest professional organization of stem cell researchers from around the world, opposes the U.S. administration’s Executive Order calling for a 90-day suspension of visas and other immigration benefits for all nationals of Iran, Iraq, Syria, Sudan, Yemen, Libya, and Somalia. Preventing medical researchers from entering the U.S. based solely upon their country of origin is contrary to widely accepted international values and is detrimental to progress in science and medicine.

Fetal tissue research has made major contributions to our understanding of biology and the development of new medical technologies, including vaccines for many diseases that have saved millions of lives.