Case
An instance of a particular disease, injury, or health condition.
Glossary A–Z
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Case
An individual identified as having a particular disease or health condition.
Cohort Study
Study following exposed and unexposed groups over time.
Confounding
Mixing of effects between an exposure and another factor.
Contact
A person or interaction involving potential exposure to an infected individual.
Control
A comparison subject or group used to evaluate differences in a study.
Correlation
A statistical relationship between two or more variables.
COVID-19
An infectious respiratory disease caused by the SARS-CoV-2 virus.
Cross-Sectional Study
A study that examines a population at a single point in time.
Culture
The laboratory cultivation of microorganisms or cells for diagnostic evaluation.