Concepts
Attack Rate
Also Known As Attack Ratio
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The attack rate is the proportion of an at-risk population that contracts a disease during a specified time interval, calculated by dividing the number of new cases in the population at risk by the number of persons at risk in that population. Epidemiologists use it both in hypothetical outbreak planning and during real outbreaks, to project the number of infections an epidemic will produce so that resources for medical care, vaccine production and antiviral or antibacterial medicine can be marshalled in advance of need.
Facts
Concept ClassSourced to the subject's own accountEpidemiological Measure 1 Cross-Tradition Connections
Associated With
Both are standard outbreak-investigation measures, tracking how many people are affected versus how many affected people die.
In Branch
Sources
1. Wikipedia: Attack Rate
WikipediaLead sectionQuote, Lead section
the attack rate is the proportion of an at-risk population that contracts the disease during a specified time interval.
View the Source 1. Wikipedia: Attack Rate
WikipediaUsage sectionQuote, Usage section
It is used in hypothetical predictions and during actual outbreaks of disease...It is used to project the number of infections to expect during an epidemic. This aids in marshalling resources for delivery of medical care as well as production of vaccines and/or anti-viral and anti-bacterial medicines.
View the Source 1. Wikipedia: Attack Rate
WikipediaFormula sectionQuote, Formula section
The rate is arrived at by taking the number of new cases in the population at risk and dividing by the number of persons at risk in the population.
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