Table 1:

The headline results of figure 4, in numbers: Provincial seroprevalence estimates, interpreted as attack rates, the total number of infections this implies, as well as the official number of persons diagnosed in each province, and the multiplicative factor (rounded to the nearest whole number) relating our estimate to the official case count. Note that the estimated number of infections is based on our estimated prevalence being applied only to the age group 15–69.

Province	Estimated seroprevalence / attack rate (%)	Estimated total infections (count, rounded)	Officially diagnosed cases (Count)	Diagnostic underestimate ( -fold, rounded)
Eastern Cape	62.5(58.9–66.1)	2,729,448	186,771	15
Northern Cape	31.8((25.3–38.3)	235,053	29,558	8
Free State	45.5(39.9–51.1)	878,206	70,511	12
KwaZulu Natal	52.1(49.1–55.2)	3,955,859	279,974	14