Summary: ``The mathematical modeling of infectious diseases has become of paramount importance in recent years. Since 2019, with the worldwide spread of the Covid-19 pandemic, many already existing mathematical models have been improved. This paper focuses on the digital analysis of a model of transmission of the Covid-19 disease by means of Chebyshev wavelets. The analysis of the results obtained makes it possible to make a very good forecast of positive Covid-19 cases according to the parameters studied.''