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Table 1 Description of compartments in SEIQHRF model

From: An analysis of COVID-19 clusters in India

State

Indicator

Functional Definition

Susceptible

S

Susceptible to COVID-19

Exposed

E

Exposed and infected, but not yet symptomatic, have the potential to become infectious

Infected

I

Infected symptomatic as well as infectious

Quarantined

Q

Infectious and self-isolated i.e. individuals who are isolated and hence do not come in contact with the susceptible popualtion)

Hospitalized

H

Those that require hospitalization and would normally be hospitalized if capacity was available

Recovered

R

Recovered, assumed to be immune from further infection. However, repeat infection is possible, but chances are low and for the time being assumed disregardable.

Fatality

F

Case fatality (death exclusively due to COVID-19 and of no other cause.