English to Russian Medical Medical (general) epidemiology

The term infection fatality rate (IFR) also applies to infectious disease outbreaks, and is closely related to the CFR, but attempts to additionally account for all asymptomatic and undiagnosed infections.[7] The IFR differs from the CFR in that it aims to estimate the fatality rate in all those with infection: the detected disease (cases) and those with an undetected disease (asymptomatic and not tested group).[8] (Individuals who are infected, but always remain asymptomatic, are said to have "inapparent" — or silent, or subclinical, or occult — infections.) The IFR will always be lower than the CFR as long as all deaths are accurately attributed to either the infected or the non-infected class.