case-to-infection ratio


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Noun1.case-to-infection ratio - the number of cases of a disease divided by the number of infections with the agent that causes the disease
proportion - the quotient obtained when the magnitude of a part is divided by the magnitude of the whole
References in periodicals archive ?
Environmental surveillance often can detect evidence of WPV infections even in the absence of AFP cases, which is especially important for detection of WPV3, whose case-to-infection ratio (approximately one paralytic case in 1,000 infections) is about one fifth that of WPV1 (approximately one in 200) (5).
Because of the low case-to-infection ratio, effective control measures should not be based on response to individual cases.
The extent of virus circulation following importation has not yet been determined (the paralytic case-to-infection ratio is typically 1:200 in a fully susceptible population).