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. 2021 Jun 16;9:645405. doi: 10.3389/fpubh.2021.645405

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Copyright © 2021 Yadav and Akhter.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The Susceptible-Exposed-Infected-Recovered (SEIR) model is an extension of the SIR model to include an exposed but non-infectious group of individuals. This model considers the number of susceptible, exposed, infectious, and recovered individuals with no additional mortality associated with infectious disease.