Terrence Howard plays a music mogul in a new series on Fox. CHICAGO â In the presidential suite of a Hilton hotel, above a ballroom full of extras waiting to shoot a lavish party scene, sat the two lead actors of âEmpire,â a new Fox series about a feuding entertainment-industry family.
Prevalence is a statistical concept referring to the number of cases of a disease that are present in a particular population at a given time, whereas incidence refers to the number of new cases that develop in a given period of time.
Incidence and prevalence are terms commonly used in describing disease epidemiology. Incidence. Incidence is the rate of new (or newly diagnosed) cases of the disease. It is generally reported as the number of new cases occurring within a period of time (e.g., per month, per year).