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 stated that they had other diseases of the central nervous system and none had encephalitis. Three deaths were clearly related to other complications of the vaccine—a 66-year-old man who developed sepsis from an infected vaccination site, and two infants with eczema who developed generalized vaccinia after contact with others who had been vaccinated. Two additional victims who received the smallpox vaccine and died were named in newspaper reports—Benjamin F. Cohen, age 41, of Newark, N.J., who died on May 5, a little more than two weeks after being vaccinated, and Nancy Jean Vanderhoof, age 3, of New Providence, N.J., who