Author: Ismael Khorshed Abdulrahman
Title: SimCOVID: An Open-Source Simulink-Based Program for Simulating the COVID-19 Epidemic Document date: 2020_4_17
ID: nexylnv4_7
Snippet: For the SEIR model, an additional compartment is added between the Susceptible and Infectious compartment called "Exposed". This compartment is dedicated to those people who are infectious but they do not infect others for a period of time namely incubation or latent period. Note that the summation of the four state-variables at any time stays constant, and refers to the incubation period. For the SIRD model, an additional compartment is added at.....
Document: For the SEIR model, an additional compartment is added between the Susceptible and Infectious compartment called "Exposed". This compartment is dedicated to those people who are infectious but they do not infect others for a period of time namely incubation or latent period. Note that the summation of the four state-variables at any time stays constant, and refers to the incubation period. For the SIRD model, an additional compartment is added at the end of the SIR model to distinguish between recovered and death cases in the Removed compartment. Note that the ratio gives us an important metric called "basic reproductive number", or 0 . 0 is a measure of how contagious a disease is, in other words, how many people are infected by a single infected person. If 0 > 1, there is a spread of disease which is a strong sign of a pandemic. If 0 < 1, there is a decline in the spread [15] .
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