A Bayesian mixture model to describe COVID-19 outbreaks in the state of Guerrero, Mexico
Keywords:
mixture of distributions, Markov Chain, Monte Carlo, Bayesian estimation, COVID-19 outbreaksAbstract
The COVID-19 pandemic has put the entire world on alert due to the large number of infections, hospitalizations, and deaths caused by this disease. Since its beginning, in December 2019, outbreaks of considerable increases in the number of infections and deaths, have been occurring. In this work, the daily behavior of infections, hospitalizations, and deaths from COVID-19 in the state of Guerrero is mathematically modeled using a Bayesian mixture model with Gaussian distributions from March 15, 2020 to February 27, 2022. The parameters of interest were estimated using the Bayesian method, the posterior distributions of each of them were obtained using Markov Chains via Monte Carlo and the estimates were validated with the corresponding convergence analyses. With the mixture model, five outbreaks were identified for infected cases, and four for both hospitalized and deaths cases. Finally, the implementation of the model was carried out with the help of the R statistical software and the JAGS package.
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Copyright (c) 2026 Yaineris Ferrán, Francisco J. Ariza, Martín P. Árciga, Jorge Sánchez (Autor/a)

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