Barbara Loe Fisher is co-founder and president of the National Vaccine Information Center (NVIC). She is the co-author of DPT: A Shot in the Dark (Harcourt Brace Jovanovich 1985; Warner 1986; Avery 1991); author of The Consumer's Guide to Childhood Vaccines (NVIC 1997) and editor of THE VACCINE REACTION.

During the early 1980's, she helped launch a grassroots movement to bring the issue of vaccine safety to public attention, including leading demonstrations at the Centers for Disease Control in Atlanta and the White House in 1986. Her book, DPT: A Shot in the Dark, which she co-authored with Harris Coulter, Ph.D., was the first major, well documented critique of America's mass vaccination system calling for safety reforms and the right to informed consent to vaccination.

She served on the National Vaccine Advisory Committee, and was appointed to the Institute of Medicine Vaccine Safety Forum in 1995, where she has helped to coordinate five public workshops on vaccine safety issues. She also served as the consumer voting member on the FDA Vaccines and Related Biological Products Advisory Committee from 1999-2003. She has represented health care consumers at many scientific conferences, government meetings and legislative hearings and is a featured speaker at health care conferences in the U.S. and Canada and Europe. As NVIC's public spokesperson, she has contributed to numerous newspaper and magazine articles about vaccine safety and appears on national radio and television programs discussing vaccines and diseases and advocating informed consent to vaccination.

The mother of three children, her oldest son was left with multiple learning disabilities and attention deficit disorder after a severe reaction to his fourth DPT shot in 1980 when he was two and a half years old. 

 Kathi Williams is co-founder, vice president and director of the National Vaccine Information Center (NVIC). She opened NVIC's office in 1982, creating the administrative infrastructure and managing the business and day-to-day operations for most of NVIC's 22-year history. She was a co-leader in launching the vaccine safety and informed consent movement in America in the early 1980's, including coordinating state support groups of parents of vaccine injured children and organizing community educational outreach programs.

As principal liaison with NVIC's membership, she is an expert on the provisions and implementation of the National Childhood Vaccine Injury Act of 1986, including the Vaccine Adverse Event Reporting System (VAERS). She has represented NVIC membership concerns at many meetings of the Advisory Commission on Childhood Vaccines and other government meetings and legislative hearings.

The mother of two children, her son suffered a severe reaction to his fourth DPT shot at 18 months in 1982 and was left with learning disabilities and attention deficit disorder.