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. 2021 Apr 1;13(2):302–328. doi: 10.3390/idr13020031
AFCR Asymptotic Fatality–Case Ratio
Generation time Average time between two consecutive infections
IFCR Instantaneous Fatality–Case Ratio
R0 Basic Reproduction Number, number of secondary infections emerging
from an index case in a fully susceptible population
Serial interval Average time between the onset of symptoms of two consecutive
infections, often used as an approximation to the generation time
SIR/SEIR Susceptible-(exposed)-infected-removed epidemiological
compartment models
Time-to-death duration Average time between the registrations of new cases and the
corresponding registrations of deaths, if applicable.