Question

Smallpox was declared eradicated in 1979. Can you tell the difference between eradication and elimination of a disease? Select the two correct definitions for eradication and elimination of a disease:

A. Eradication refers to the complete and permanent worldwide reduction to zero new cases of the disease through deliberate efforts.
B. Eradication refers to the reduction to zero (or a very low defined target rate) of new cases in a defined geographical area.
C. Elimination refers to the complete and permanent worldwide reduction to zero new cases of the disease through deliberate efforts.
D. Elimination refers to the reduction to zero (or a very low defined target rate) of new cases in a defined geographical area.

Answer

Answer A and D are correct.

EradicationEradicationThe complete and permanent worldwide reduction to zero new cases of an infectious disease through deliberate efforts; no further control measures are required. refers to the complete and permanent worldwide reduction to zero new cases of the disease through deliberate efforts.

  • If a disease has been eradicated, no further control measures are required.

EliminationEliminationReduction to zero (or a very low defined target rate) of new cases of an infectious disease in a defined geographical area as a result of deliberate efforts; continued measures to prevent re-establishment of transmission are required. refers to the reduction to zero (or a very low defined target rate) of new cases in a defined geographical area.

  • Elimination requires continued measures to prevent re-establishment of disease transmission.