In November, 1985, MPP for Rainy River, Jack Pierce stood in the Ontario legislature before second reading of a bill he had introduced. His words are recorded in the Hansard (the official report of proceedings of Parliament):

My bill deals with the occurrences and documentation of severe side-effects which can result from the vaccination of infants and children. Some members may not be aware that the routine vaccination called DPT, diphtheria, pertussis and tetanus, given to almost every one of our children, can lead to convulsions, brain damage and even death.