Final answer:
Morbidity and mortality are important measurements of disease occurrence and distribution.
Step-by-step explanation:
Two important measurements of disease occurrence and distribution are morbidity (illnesses due to a disease) and mortality (deaths due to a disease). The morbidity of a specific disease is defined as the number of susceptible people in a population that have the disease during a specific period of time, and is usually expressed as a rate. Mortality may also be expressed as a rate, and reflects the number of deaths due to a particular disease in a population over time.