CFR is a death rate of the population with particular medical conditions by definition. It is a correct usage. CFR doesn't translate to the additional death ra

CFR is a death rate of the population with particular medical conditions by definition. It is a correct usage. CFR doesn't translate to the additional death rate, but it does contribute to the death rate by unspecified amount. In particular high enough CFR directly translates to the additional death rate when it exceeds the original crude death rate.