Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021

The aim of the study is to apply mathematical methods to generate forecasts of the dynamics of random values of the percentage increase in the total number of infected people and the percentage increase in the total number of recovered and deceased patients. The obtained forecasts are used for retro...

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Main Authors: Victor V. Zakharov, Yulia E. Balykina
Format: Article
Language:English
Published: Central Research Institute for Epidemiology 2024-12-01
Series:Вопросы вирусологии
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Online Access:https://virusjour.crie.ru/jour/article/viewFile/16682/942
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author Victor V. Zakharov
Yulia E. Balykina
author_facet Victor V. Zakharov
Yulia E. Balykina
author_sort Victor V. Zakharov
collection DOAJ
description The aim of the study is to apply mathematical methods to generate forecasts of the dynamics of random values of the percentage increase in the total number of infected people and the percentage increase in the total number of recovered and deceased patients. The obtained forecasts are used for retrospective forecasting of COVID-19 epidemic process dynamics in St. Petersburg and in Moscow. Materials and methods. When conducting a retrospective analysis and forecasting the dynamics of the total number of cases and the dynamics of the total number of patients who have either died or recovered, the values of percentage increases in these indicators were used. Retrospective analysis and forecasting of the dynamics of the COVID-19 epidemic process were carried out over 14-day time intervals, starting from March 25, 2020 to January 20, 2021, using the time series forecasting method proposed by the authors. Results and discussion. The retrospective two-week forecasts of the total number of cases and the number of active cases presented in the paper demonstrated a high accuracy performance, both in Moscow and St. Petersburg. The MAPE (mean absolute percentage error) for the total number of cases at the peaks of incidence, generally, did not exceed 1%. It is shown that the accuracy of the obtained retrospective forecasts of the total number of cases in St. Petersburg, built starting from May 2020, has increased significantly compared to the April forecasts. A similar conclusion can be made regarding the forecasts of the total number of cases in Moscow in April and May 2020.
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institution Kabale University
issn 0507-4088
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spelling doaj-art-7acd0a116e9f41db96bb134848f97bcc2025-01-22T15:18:43ZengCentral Research Institute for EpidemiologyВопросы вирусологии0507-40882411-20972024-12-0169650050810.36233/0507-4088-2651253Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021Victor V. Zakharov0https://orcid.org/0000-0002-2743-3880Yulia E. Balykina1https://orcid.org/0000-0003-2143-0440St. Petersburg State UniversitySt. Petersburg State UniversityThe aim of the study is to apply mathematical methods to generate forecasts of the dynamics of random values of the percentage increase in the total number of infected people and the percentage increase in the total number of recovered and deceased patients. The obtained forecasts are used for retrospective forecasting of COVID-19 epidemic process dynamics in St. Petersburg and in Moscow. Materials and methods. When conducting a retrospective analysis and forecasting the dynamics of the total number of cases and the dynamics of the total number of patients who have either died or recovered, the values of percentage increases in these indicators were used. Retrospective analysis and forecasting of the dynamics of the COVID-19 epidemic process were carried out over 14-day time intervals, starting from March 25, 2020 to January 20, 2021, using the time series forecasting method proposed by the authors. Results and discussion. The retrospective two-week forecasts of the total number of cases and the number of active cases presented in the paper demonstrated a high accuracy performance, both in Moscow and St. Petersburg. The MAPE (mean absolute percentage error) for the total number of cases at the peaks of incidence, generally, did not exceed 1%. It is shown that the accuracy of the obtained retrospective forecasts of the total number of cases in St. Petersburg, built starting from May 2020, has increased significantly compared to the April forecasts. A similar conclusion can be made regarding the forecasts of the total number of cases in Moscow in April and May 2020.https://virusjour.crie.ru/jour/article/viewFile/16682/942sars-cov-2covid-19epidemic processincidenceactive cases of the diseaseretrospective analysisforecasting
spellingShingle Victor V. Zakharov
Yulia E. Balykina
Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
Вопросы вирусологии
sars-cov-2
covid-19
epidemic process
incidence
active cases of the disease
retrospective analysis
forecasting
title Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
title_full Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
title_fullStr Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
title_full_unstemmed Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
title_short Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021
title_sort retrospective analysis and forecasting of the spread of viruses in real time the case of covid 19 in st petersburg and moscow in 2020 2021
topic sars-cov-2
covid-19
epidemic process
incidence
active cases of the disease
retrospective analysis
forecasting
url https://virusjour.crie.ru/jour/article/viewFile/16682/942
work_keys_str_mv AT victorvzakharov retrospectiveanalysisandforecastingofthespreadofvirusesinrealtimethecaseofcovid19instpetersburgandmoscowin20202021
AT yuliaebalykina retrospectiveanalysisandforecastingofthespreadofvirusesinrealtimethecaseofcovid19instpetersburgandmoscowin20202021