Guidelines and policy changes for different alert levels in Gauteng. The time intervals are separated by points of inflection identified in Edholm <i>et al</i>. [10]; these points separate time periods where the rate of cumulative cases was increasing from periods when the rate of cumulative cases was decreasing [10], Fig 1]. Note that the vaccinations of healthcare workers only started in February 2021 and the vaccinations only started in June 2021 for the elderly. Thus, the vaccinations roll-out did not have any impact on the model here.

Guidelines and policy changes for different alert levels in Gauteng. The time intervals are separated by points of inflection identified in Edholm et al. [10]; these points separate time periods where the rate of cumulative cases was increasing from periods when the rate of cumulative cases was decreasing [10], Fig 1]. Note that the vaccinations of healthcare workers only started in February 2021 and the vaccinations only started in June 2021 for the elderly. Thus, the vaccinations roll-out did not have any impact on the model here.