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Reference.org
Case fatality rate
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<p>In <a href="/facts/Epidemiology/wgTmxoMA">epidemiology</a>, case fatality rate (CFR) – or sometimes more accurately case-fatality risk – is the proportion of people who have been <a href="/facts/Medical_diagnosis/J47rvb0p">diagnosed</a> with a certain disease and end up <a href="/facts/Cause_of_death/cdhCU6Ak">dying of it</a>. Unlike a disease's <a href="/facts/Mortality_rate/s4gmxyFV">mortality rate</a>, the CFR does not take into account the time period between disease onset and death. A CFR is generally expressed as a percentage. It is a measure of disease <a href="/facts/Lethality/03bCAHTD">lethality</a>, and thus may change with different <a href="/facts/Therapy/2ytkGbgT">treatments</a>. CFRs are most often used for with discrete, limited-time courses, such as acute <a href="/facts/Infection/182XrncP">infections</a>. </p>