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Smallpox and bioterrorism: public-health responses.
Harry F Hull1, Richard Danila, Kristen Ehresmann
1Infectious Disease Epidemiology, Prevention, and Control Division, Minnesota Department of Health, Minneapolis, MN 55414, USA. harry.hull@state.mn.us
The Journal of Laboratory and Clinical Medicine
|November 20, 2003
Summary
Smallpox bioterrorism poses a significant threat due to its high mortality and low population immunity. Containment strategies, including surveillance and vaccination, are crucial for managing potential smallpox outbreaks.
Area of Science:
- Public Health
- Infectious Diseases
- Bioterrorism Preparedness
Background:
- Smallpox (variola virus) is a highly contagious disease with a significant mortality rate.
- Low population immunity increases vulnerability to smallpox outbreaks.
- Potential for smallpox weaponization raises bioterrorism concerns.
Purpose of the Study:
- To assess the risks associated with smallpox as a bioterrorism agent.
- To outline strategies for controlling a potential smallpox outbreak.
- To recommend protective measures for healthcare workers.
Main Methods:
- Review of smallpox transmission dynamics.
- Analysis of historical smallpox eradication strategies.
- Epidemiological risk assessment for bioterrorism scenarios.
Main Results:
- Initial smallpox release can cause widespread infection, but secondary spread is likely slow due to long incubation and close contact requirements.
- Hospital personnel and household contacts face the highest risk of infection.
- Established public health strategies (surveillance, containment, vaccination, isolation) are effective for outbreak control.
Conclusions:
- Smallpox remains a credible bioterrorism threat requiring preparedness.
- Containment strategies mirroring those used for global eradication are recommended.
- Pre-exposure vaccination for high-risk individuals, particularly hospital personnel, is advised.