Public Health Glossary

Quadrivalent Vaccine

Definition: A quadrivalent vaccine is a type of vaccine designed to protect against four different strains or serotypes of a…

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Qualitative Research

Definition: Qualitative research is a systematic inquiry approach used to understand experiences, perspectives, meanings, and social processes from the viewpoint…

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Quality Improvement

Definition: Quality Improvement (QI) in public health is a systematic and data-driven approach to enhance the effectiveness, efficiency, equity, and…

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Quality of Life

Definition: Quality of Life (QoL) in public health refers to an individual's or group's overall well-being and satisfaction with life,…

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Quality-Adjusted Life Year (QALY)

Definition: A Quality-Adjusted Life Year (QALY) is a generic measure of disease burden, combining both the quantity and quality of…

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Quantification

Definition: Quantification in public health is the systematic process of measuring, counting, and assigning numerical values to health-related phenomena, characteristics,…

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Quantitative Research

Definition: Quantitative research in public health is a systematic empirical investigation that involves collecting and analyzing numerical data to identify…

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Quarantine

The restriction on the movement of people, animals and goods which is intended to prevent the spread of disease or pests.

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Quasi-Experimental Design

Definition: A quasi-experimental design is a research methodology used to estimate the causal impact of an intervention on a target…

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Questionnaire

Definition: A questionnaire is a systematic set of questions designed to collect standardized information from a group of respondents, serving…

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Quorum Sensing

Definition: Quorum sensing (QS) is a system of bacterial communication that enables coordinated gene expression based on population density, allowing…

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