What term describes a disease transmission pattern where incidence is reduced to zero in a geographic area due to deliberate interventions, with ongoing efforts required?

• A. Elimination
• B. Eradication
• C. Control
• D. Containment

Answer: (A)

Elimination refers to stopping transmission of a disease in a defined geographic area, so the incidence drops to zero within that area due to deliberate public health actions, while ongoing surveillance and response are needed to maintain that zero and prevent reintroduction. This is different from eradication, which means worldwide zero transmission with no further interventions anywhere. It’s also distinct from control, which aims to reduce disease to a locally acceptable level but not necessarily to zero, and from containment, which focuses on limiting the spread of an outbreak rather than achieving zero transmission in a specific region. The description—zero incidence in a geographic area achieved through deliberate efforts with ongoing precautions—fits elimination.