Overview Incidence Symptoms Evaluation Treatment specialist Prevention Outlook Underlying Cause biological weapon Transmission Types
Facts about smallpox:
- Smallpox is very contagious.
- Exposure to the virus usually results in an infection.
- People with smallpox release the virus into the air on droplets of mucus when they sneeze or cough.
- The smallpox virus enters the lungs of others when they inhale the droplets.
- Currently, the only possible source of exposure would be from a laboratory that studies smallpox.
Continue to Smallpox Types
PubMed Smallpox References
- 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.