Mozart and smallpox the imperial family were successful, and led to greater public acceptance for the procedure. Smallpox struck the Mozart family again in the next generation: Nannerl's eldest son Leopold and two of her stepchildren caught the disease during an outbreak in the Salzburg area in 1787. All three children survived. In 1796, the discovery of vaccination—the use of the related cowpox virus to immunize against smallpox—by Edward Jenner revolutionized the ability of medicine to deal with smallpox. Vaccination reached Vienna around 1800, when yet another local epidemic created impetus for its adoption. One of the doctors trained in the Vienna campaign,
1947 New York City smallpox outbreak days. She pleaded guilty to unlawful practice of medicine, assault, and illegal possession of a hypodermic needle, and was sentenced to six months in jail. 1947 New York City smallpox outbreak The 1947 New York City smallpox outbreak occurred in March, 1947 and was declared ended on April 24, 1947. The outbreak marked two milestones for America. First, it was the largest mass vaccination effort ever conducted for smallpox in America, and second, it marked the last outbreak of smallpox in America. Within three weeks of the discovery of the outbreak, the U.S. Public Health Service, in conjunction with New