395295 06: (Undated Photo) The Effects Of Smallpox Exposure Is Seen In This Medical Photograph Of A Young Boy With The Characteristic Bumps Caused By The Disease. The Threat Of A Biological Terrorist Attack On The United States Has Gained Renewed Attention Since The September 11, 2001 Terrorist Attacks In Washington Dc And New York City. (Photo By Getty Images)
Effects Of Smallpox Exposure
