MODELING THE DEVELOPMENT OF EPIDEMIS BASED ON INFORMATION TECHNOLOGIES OF OPTIMIZATION
Keywords:epidemic, mathematical model, differential equations, identification, information technology, simulation
Mathematical models of the epidemic have been developed and researched to predict the development of the COVID-19 coronavirus epidemic on the
basis of information technology for optimizing complex dynamic systems. Mathematical models of epidemics SIR, SIRS, SEIR, SIS, MSEIR in the
form of nonlinear systems of differential equations are considered and the analysis of use of mathematical models for research of development of
epidemic of coronavirus epidemic COVID-19 is carried out. Based on the statistics of the COVID-19 coronavirus epidemic in the Kharkiv region, the
initial values of the parameters of the models of the last wave of the epidemic were calculated. Using these models, the program of the first-degree
system method from the module of information technology integration methods for solving nonlinear systems of differential equations simulated the
development of the last wave of the epidemic. Simulation shows that the number of healthy people will decrease and the number of infected people
will increase. In 12 months, the number of infected people will reach its maximum and then begin to decline. The information technology of
optimization of dynamic systems is used to identify the parameters of the COVID-19 epidemic models on the basis of statistical data on diseases in the
Kharkiv region. Using the obtained models, the development of the last wave of the COVID-19 epidemic in Kharkiv region was predicted. The
processes of epidemic development according to the SIR-model with weakening immunity are given, with the values of the model parameters obtained
as a result of identification. Approximately 13 months after the outbreak of the epidemic, the number of infected people will reach its maximum and
then begin to decline. In 10 months, the entire population of Kharkiv region will be infected. These results will allow us to predict possible options for
the development of the epidemic of coronavirus COVID-19 in the Kharkiv region for the timely implementation of adequate anti-epidemic measures.
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