Links for 2020-06-06

  • No, coronavirus apps don’t need 60% adoption to be effective | MIT Technology Review

    But even though the researchers know that lower levels of adoption will be useful, they aren’t entirely sure what different ranges will actually mean. Still, every successful notification means a life potentially saved. Fraser says his team had assumed that lower levels of usage might have very small benefits—but that, in fact, simulations show the upsides are significantly higher than they thought. “The expectation going in was that app usage wouldn’t be very effective at low levels,” he says. “If you have 10% of people using the app, then the chance of contact between two people being detected is 10% of 10%, which is 1%—a tiny fraction. What we found in the simulation was that that actually isn’t the case. We’ve been working to understand why we actually see benefits of usage accruing.”

    (tags: contact-tracing apps exposure-notification covid-19 papers)

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