Can the COVIDSafe app help contain a second wave?

A second wave of coronavirus infections is coming, but the number of cases could be halved if more people download the COVIDSafe app, says a leading Australian public health institute.
The Sax Institute’s data reveals that by May 27% of Australians had downloaded the app, which was also experiencing technical difficulties.
The app has not led to the detection of a single case of COVID-19 yet.
However, modelling by the institute suggests that the number of new infections could be reduced by 55% by December if twice as many people download the app and technical hitches are resolved.