Attack Rate
A cumulative incidence measure used in outbreak settings.
Term Map
Choose a root term and explore related concepts as a lightweight map.
Bias
Systematic error that distorts a study estimate.
Case-Control Study
Study comparing prior exposure among cases and controls.
Cohort Study
Study following exposed and unexposed groups over time.
Confounding
Mixing of effects between an exposure and another factor.
Endemic
Constant presence of a disease in a region or population.
Epidemic
Occurrence of disease above expected levels in a community.
Incidence
Number of new cases in a population over a period.
Pandemic
Epidemic spread across multiple countries or continents.
Prevalence
Proportion of a population with a condition at a point or period.
Surveillance
Ongoing systematic collection and interpretation of health data.