http://articles.mercola.com/sites/articles/archive/2003/04/19/smallpox-vaccines-part-two.aspxBetween January 24 and March 21, 2003 the smallpox vaccine was administered to 25,645 civilian health care and public health workers in 53 jurisdictions as part of an effort to prepare the United States in the event of a terrorist attack using smallpoxenCommunityServer 2008.5 SP1 (Build: 31106.3070)