What to expect with smallpox:
- In the past, about 30 percent of those with smallpox died from the disease.
Continue to Smallpox Underlying Cause
- Heymann DL. Smallpox containment updated: considerations for the 21st century. Int J Infect Dis. 2004 Oct;8 Suppl 2:S15-20. 
- Kerrod E, Geddes AM, Regan M, Leach S. Surveillance and control measures during smallpox outbreaks. Emerg Infect Dis. 2005 Feb;11(2):291-7. 
- Woods R, McCarthy T, Barry MA, Mahon B. Diagnosing smallpox: would you know it if you saw it? Biosecur Bioterror. 2004;2(3):157-63.