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Public health
Public health rests on precise definitions, indicators and study designs that are easy to confuse. Lumi quizzes you on this vocabulary until the difference between two close ideas is clear.

How to turn this subject into cards
Make one note per concept, such as incidence, prevalence, bias, study designs or screening, with its definition, formula and an example. Always quiz yourself in pairs, for instance incidence against prevalence. The trap is reading a case and applying the wrong formula because the words look alike. Lumi helps you retain definitions, formulas and criteria.
Example card
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Public health · teach this card to Lumi
Incidence counts new cases in a population over a period of time. Specificity is the proportion of healthy people a test correctly identifies as negative. Herd immunity occurs when enough people are immune that an infection struggles to spread. A cohort study follows a group over time to compare outcomes.
Lumi’s question
_____ counts new cases in a population over a period of time.
Pick the missing word


Answer right to light Lumi up
Its lamp fades when a fact slips away.
Levels where Lumi offers this subject
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Teach this to Lumi
Give Lumi your public health notes, it gives them back as questions at the right moment.


