Epi Info is the free CDC-built tool for building outbreak questionnaires, entering line-list data, and running quick descriptive analyses in the field — it's often the only software available at a district health office during an active outbreak. It's core to Epidemiologist work in India and a supporting tool for Public Health Officers coordinating district-level surveillance. Because it's free and lightweight, it's the default choice for state IDSP teams that can't license Stata or SPSS.
The skills most often needed alongside Epi Info in the same roles — build these together to widen your options.
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