Which statement is NOT a part of the basic steps of an outbreak investigation?

• A. Confirm outbreak, define a case, find cases, generate hypotheses, collect and analyze data, implement control measures, communicate findings, monitor for resolution.
• B. Publish a peer-reviewed report before completing data collection.
• C. Define a case and find cases.
• D. Implement control measures.

Answer: (B)

Outbreak investigations are driven by a practical, action-focused sequence designed to quickly identify the source and stop transmission: confirm that an outbreak is occurring, define what counts as a case, actively locate cases, generate hypotheses about sources and spread, collect and analyze data, implement control measures, communicate findings, and monitor for resolution. This flow emphasizes timely, real-time decision-making and immediate public health actions.

Publishing a peer-reviewed report before finishing data collection doesn’t fit this process. Peer-reviewed publication is a formal, slower step that occurs after enough data are gathered and interpreted, and it isn’t part of the urgent, step-by-step actions used to control an ongoing outbreak. In practice, investigators share findings with health authorities and the public promptly to guide interventions, with formal publication following later.

The other statements align with the essential actions: defining a case and finding cases are core early steps, and implementing control measures is a central ongoing activity to curb transmission.