Skip to Content
Home > Wellness > Health Library > Ring Vaccination for Smallpox
Ring vaccination is a strategy to control disease. It was used to
smallpox until the last naturally occurring case in
1977. When an infection was diagnosed, all people who were or may have been
exposed were found and vaccinated. Then a second "ring" of people who may
have been exposed to the first ring were also found and vaccinated.
Many disease-control experts support ring vaccination instead of mass vaccination of the American public.
ByHealthwise StaffPrimary Medical ReviewerE. Gregory Thompson, MD - Internal MedicineSpecialist Medical ReviewerChristine Hahn, MD - Epidemiology
Current as ofNovember 14, 2014
Current as of:
November 14, 2014
E. Gregory Thompson, MD - Internal Medicine & Christine Hahn, MD - Epidemiology
How this information was developed to help you make better health decisions.
To learn more, visit Healthwise.org
© 1995-2015 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.