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  • The state once used this measure to calculate coronavirus test positivity. Here’s what it says now

    Boston Globe - 10/01/2020

    “From a disease transmission perspective, from a risk perspective, this calculation that they’re leading with [on the COVID-19 dashboard] is likely a substantial underestimate,” said Samuel Scarpino, a Northeastern University epidemiologist. “If you have 10,000 tests a day coming from the colleges and universities who all have a very low percent positivity, then it’s very easy to end up with a biased positivity for the state.”

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