https://towardsdatascience.com/daily-to-weekly-pandas-c0557b12f052
The datafile covid_confirmed_usafacts.csv contains Covid-19 confirmed daily cases in US from 01/22/2020 to 02/07/2021. Up to date file can be downloaded via link below:
https://usafacts.org/visualizations/coronavirus-covid-19-spread-map/