Related Experiment Video
Updated: Sep 25, 2025

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
Published on: November 10, 2023
Modified SIQR model for the COVID-19 outbreak in several countries
Carla M A Pinto1,2, J A Tenreiro Machado1, Clara Burgos-Simón3
1School of Engineering Polytechnic of Porto Rua Dr António Bernardino de Almeida, 431 Porto 4249-015 Portugal.
Abstract:
In this paper, we propose a modified Susceptible-Infected-Quarantine-Recovered (mSIQR) model, for the COVID-19 pandemic. We start by proving the well-posedness of the model and then compute its reproduction number and the corresponding sensitivity indices. We discuss the values of these indices for epidemiological relevant parameters, namely, the contact rate, the proportion of unknown infectious, and the recovering rate. The mSIQR model is simulated, and the outputs are fit to COVID-19 pandemic data from several countries, including France, US, UK, and Portugal. We discuss the epidemiological relevance of the results and provide insights on future patterns, subjected to health policies.
More Related Videos
Related Concept Videos
Steps in Outbreak Investigation
Single Nucleotide Polymorphisms-SNPs
Statistical Methods for Analyzing Epidemiological Data
Principles of Disease Surveillance
Causality in Epidemiology
Pareto Chart
The Pareto chart is named after the Italian economist Vilfredo Pareto, who described the Pareto...

