We can take precautions now to keep third wave at bay, but we must prepare for a possible rise in infections Too early to say when but ‘guesstimate’ is mid-May 23 April 2021 - 14:38 An expert predicts a third wave of Covid-19 infections could possibly be 25% worse than the second wave, even as the country continues with its vaccine rollout programme. File photo. Image: Freddy Mavunda Based on the spread of the Covid-19 pandemic in other countries, an SA expert predicts SA’s third wave could be 25% more severe than the second wave, but says the risk can be mitigated if precautions are taken now.