South Africa backlog cases November 23

[CSSEGISandData]

Hello all,

As investigated by @edomt (many, many thanks), the total number of cases reported in South Africa on November 23 includes a large backlog of 77,157 antigen tests. These historical antigen tests have resulted in the addition of 18,586 positive antigen cases to our data for November 23. Please see this explanation from the South African Ministry of Health.

We will investigate a back distribution, but caution expectations that we will be able to back distribute these as instances such as these rarely have appropriate metadata to accurately and fairly back distribute.