Failing the Coronavirus-Testing Test
“We need to change the whole script of what it means to test people,” he says. “In our country, we have always assumed that testing belongs in the clinical sphere, in the diagnostic sphere, and has to be run by laboratories or diagnosticians. The result is that we have a system for coronavirus testing…which is flailing, with raging outbreaks occurring.” What the country needs instead are rapid tests, widely deployed, so that infectious individuals can be readily self-identified and isolated, breaking the chain of transmission.
To do that, Mina says, everyone must be tested, every couple of days, with $1, paper-based, at-home tests that are as easy to distribute and use as a pregnancy test: wake up in the morning, add saliva or nasal mucous to a tube of chemicals, wait 15 minutes, then dip a paper strip in the tube, and read the results. Such tests are feasible—a tiny company called E25Bio, and another called Sherlock Biosciences (a start-up spun out of Harvard’s Wyss Institute for Biologically Inspired Engineering and the Broad Institute in 2019) can deliver such tests—but they have not made it to the marketplace because their sensitivity is being compared to that of PCR tests.
https://harvardmagazine.com/2020/08/covid-19-test-for-public-health
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