The last naturally occurring case of the disease was in Somalia in 1977. Routine vaccination for smallpox was discontinued in the U.S. in 1972. Could smallpox be used as a bioterrorist weapon?
How much of a threat is smallpox? Find out, along with basic information about smallpox disease. Translated into 11 languages.
- Smallpox (Viruela)
CDC comprehensive site on smallpox, including basics on the disease and vaccine, and specific information for health professionals. Also available in Spanish. Attention: Non-MDH link