VaccineChildren in Ontario are required by law to get 7 or 8 different vaccines in order to attend school. Vaccines were pioneered by an Englishman Jenner in 1798 using cowpox to Vaccinate against the deadly smallpox. This vaccine saved millions of lives. Guess what! All these wonderful vaccines are put into the human body. Many diseases, like Polio, have been almost eradicated, except among conspiracy theorists who see a bogey man behind every bush.