Has Australia really had 60,000 undiagnosed COVID-19 cases?
- Written by Andrew Hayen, Professor of Biostatistics, University of Technology Sydney
A preliminary study, posted online this week by researchers at the Australian National University and elsewhere, estimates 71,000 Australians had COVID-19 by mid-July — 60,000 more than official number of cases diagnosed by that stage.
The study involved testing 2,991 elective surgery patients in ten hospitals across four states, to see...





