Which term describes the symptom or the amount of disease within a population?

Morbidity refers to the state of being diseased or unhealthy within a population and encapsulates the overall health status and the presence of disease symptoms. This term captures not only the frequency of diseases but also the impact those diseases have on individuals and communities. Morbidity is essential in public health as it provides insights into the burden of illnesses, informs resource allocation, and guides health interventions aimed at improving population health.

Prevalence, while relevant, specifically denotes the total number of cases (both new and existing) of a disease in a population at a given time, rather than the symptoms or overall state of health. Mortality measures death rates within a population due to diseases, and incidence captures the number of new cases of a disease over a specific period, neither of which directly relates to the presence of symptoms or the broader concept of disease burden that morbidity encompasses.