When generating hypothesis, what information do you want to collect (3)?

• A. Person, place, and time (of illness)
• B. Weather conditions and season
• C. Restaurant cleanliness rating
• D. Brand of kitchen equipment

Answer: (A)

In outbreak investigations, the starting point for formulating hypotheses is descriptive data that reveals patterns in who is affected, where the exposure occurred, and when the illness began. Think of collecting information on the person (age, sex, risk factors), the place of exposure (the specific location or setting, and where the illness started there), and the time of onset (dates and times symptoms began). This person–place–time information helps you see clusters, common exposures, and the likely window of transmission, forming plausible sources and routes to test.

Weather conditions and season can influence risk in some contexts, but they don’t provide the core pattern you need to create a testable hypothesis about the outbreak’s source. Similarly, a restaurant cleanliness rating or the brand of kitchen equipment is not central to identifying the initial pattern of illness and exposure; these factors may be considered later as potential contextual clues, but they’re not the primary data used to generate hypotheses about causation.