Attack rate意思

"Attack rate" is a term used in epidemiology and public health to describe the number of new cases of a disease that occur within a specific population over a certain period of time. It is also known as the incidence rate or the attack rate. The attack rate is typically expressed as the number of new cases per 100,000 people per year.

For example, if there are 100 new cases of a disease in a population of 10,000 people over the course of one year, the attack rate would be 100 cases per 10,000 people per year.

The attack rate can be used to measure the effectiveness of public health interventions, such as vaccination programs, and to identify high-risk populations that may require additional prevention efforts.