With the projected peak of the NSW outbreak approaching, it's worth showing how sensitive my projection is to one of its main assumptions: the fraction of infections that are being captured by testing. 1/6
Current projection is based on the assumption that 20% of infections are being detected. That implies there are a lot of infections contributing to immunity that have not been detected via testing. 2/6
If the detection rate is higher, say, 30%, then there are not as many undetected infections out there, and therefore less immunity. High immunity is required for infections to peak, so that implies the peak is a little further away (and higher, in terms of detected cases) 3/6