Kascha, M.Palienko, M.Marchenko, R.2021-11-052021-11-052021Kascha, M., Palienko, M., & Marchenko, R. (2021). Forecast of COVID-19 progress considering the seasonal fluctuations. Health Economics and Management Review, 2(2), 71-82. https://doi.org/10.21272/hem.2021.2-07https://essuir.sumdu.edu.ua/handle/123456789/86121This study aims to analyze the course of the COVID-19 disease and forecast its progress. Systematization of scientific background concerning the issues under investigation indicated the snowballing growth of scientific publications devoted to COVID-19. The urgency of the research rests on the negative influence of the SARS-CoV-2 virus on all spheres that deepen the global economic crisis.enCC BY 4.0швидке перетворення Фур'єбыстрое преобразование Фурьеfast Fourier transformationстаціонарністьстационарностьstationarityтест Дікі-Фуллератест Дики-ФуллераDickie-Fuller testзахворюваністьзаболеваемостьmorbidityгармонический анализгармонійний аналізharmonic analysisтрендово-сезонна модельтренд-сезонная модельtrend-seasonal modelCOVID-19прогнозforecastForecast of COVID-19 progress considering the seasonal fluctuationsArticle