Methods:
We used time series analysis to build an ARIMA model of the total number
of cases from January 21, 2020 to August 7, 2020 and used the model to
predict cases in the following 7 days, from August 8, 2020 to August 14,
2020. Hyndman and Khandakar algorithm was used to select components of
ARIMA models. Percentage error was used to evaluate forecasting
accuracy.