Final answer:
Morbidity refers to the state of being diseased or the incidence of disease and can be expressed as a rate or percentage of the population.
Step-by-step explanation:
Morbidity refers to the state of being diseased or the incidence of disease. It is a measurement of the number of individuals in a population who have a particular illness during a specific period of time. Morbidity can be expressed as a rate or as a percentage of the population.