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A line list is used to describe and analyze which of the following?

The cases

A line list is a tabular record of individual cases in an outbreak, with one row per case and columns for key attributes such as date of onset, age, sex, location, exposure history, symptoms, lab results, and outcome. This format lets investigators describe who got sick, when and where it happened, and what exposures or clinical features were common, which helps reveal transmission patterns and timelines. By organizing data this way, you can quickly spot clusters, track the progression of the outbreak, and generate hypotheses about possible sources or links between cases. It’s focused on the people who are ill—the cases—and the details that pertain to each one. It isn’t describing the population as a whole, nor is it about the virus genome or environmental factors by itself; those require different data types.

The population

The virus genome

The environment

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