Define
Use a clear operational case definition and authorised data collection.
MEDIVEERSETHE PRACTICAL HUBOBSERVE / REASON / EXPLAIN
Outbreak investigation framework
Present the first questions in a simulated cluster investigation.
Your practical station
Several students report similar gastrointestinal symptoms after an event. Outline a structured investigation without declaring the cause.
Recognise and interpret
A consistent case definition and descriptive epidemiology guide focused hypotheses and action.
- Verify the signal and diagnosis
- Describe person, place and time
- Plan proportionate investigation
Describe
Review temporal and geographic patterns and relevant denominators.
Act
Escalate through public-health channels and protect confidentiality.
At the viva table
Try answering aloud, then open the suggested answer. Examiner questions vary.
01 / Is a cluster automatically a proven common-source outbreak?
No. Verify the data and assess plausible alternatives.
02 / Why use a case definition?
It makes case ascertainment more consistent.
03 / Why are denominators important?
Counts alone do not show risk or attack rates.
04 / Can descriptive association prove causation?
No. Further evidence and investigation are often needed.