Despite disappointing download numbers and almost zero success in tracing COVID-19 infections, Australia is persisting with the COVIDSafe app, while the rest of the world embraces the ‘Gapple’ model.
Smartphone apps and wearable devices can tell when workers have been within six feet of each other, promising to help curb the coronavirus. But they’re not all the same when it comes to privacy.
New Zealand has “eliminated” COVID-19 “for now”, Prime Minister Jacinda Ardern has declared. Two key epidemiologists who worked on NZ’s elimination strategy explain the news, and the challenges ahead.
A few people in the crowd will be responsible for the bulk of a disease’s spread.
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Epidemiological data suggests that 80% of COVID-19 cases can be traced to just 20% of those infected with SARS-CoV-2.
A woman eats ice cream at Gantry Plaza State Park, Long Island City on May 30, 2020 in New York City. All 50 states have begun to reopen after weeks of stay-at-home measures.
Alexi Rosenfeld/Getty Images
There’s now a 95% chance COVID-19 has been eliminated in NZ, according to our modelling. But as NZ prepares to remove limits on large gatherings, it increases the risk of a very large new outbreak.
Dance of Death, Michael Wolgemut (1493).
Wikimedia
It is generally assumed that this disease-control technique goes back to the 1840s, but it’s actually much older.
Pairing widespread testing with fast, effective contact tracing is considered essential for controlling the coronavirus’s spread as the U.S. passes 100,000 deaths.
AP Images/Rick Bowmer
Since the state’s first coronavirus case surfaced, trained case investigators have traced the contacts of every person who tested positive. Here’s what else South Carolina got right.
COVIDSafe uses Bluetooth radio waves. These can only measure how physically close two people are, but not if those people are in the same room, or even in different cars passing each other.
Test, trace, maintain social distance, and keep travel bans and quarantines in place. These measures will help Australia keep the coronavirus in check as we gradually emerge from lockdown hibernation.
Senior Lecturer, School of Computing and Information Systems, University of Melbourne; Senior Research Fellow, Doherty Institute for Infection and Immunity, The University of Melbourne