术语信息
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Prevalence is sometimes defined as a proportion with total population size in the denominator. A particular instance of infectious agent seroprevalence will depend on a type of infectious agent and a population. Actual measures of seroprevalence are based only on tested individuals and usually specify a geographic location. Other constraints may include population demographics.
definition
A quality that inheres in an organism population and is the number of organisms in the population that have antibody specific for an infectious agent in their serum at a specified time.