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The Herman Trend Alert
August 12, 2020 Solving the COVID-19 Testing Crisis As deaths in the United States surpass 160,000 and the number of cases has now exceeded 5 million, we still have relatively too little testing going on. As you should know by now from these Herman Trend Alerts, without adequate testing, our control of this raging infection is impossible. I define adequate testing as testing in sufficient numbers with results timely enough to allow us to identify positively infective folks and trace their contacts to stop the spread. But onto this horizon arrives some great testing news. The Sad Truth about Our Testing As I covered last week, it tuns out we have been chasing tests that were "too sensitive." So here is the full story: people who have a very low viral load may still be infected, but they are unable to spread the virus to others, so it does not really matter to us or to them whether they are identified. The sensitive PCR tests we thought were necessary are not; and in fact, having a test that is only 50 percent as sensitive as most of those we are using, is just fine, because it picks up the folks we need to worry about---those who can and will spread the infection to others---and does not recognize those who cannot. Cheap Paper Tests Have Been Around for a While Back in May, a company called Sherlock Biosciences received an emergency use authorization from the US Food and Drug Administration for a special COVID-19 detection kit---special because it was crafted using the advanced gene-editing technology called Crispr. Developed by MIT's McGovern Institute for Brain Research and The Broad Institute, a genetics research center affiliated with both Harvard and MIT, the test is both simple and fast. Known as "Sherlock," the test is inexpensive and easy-to-deploy. Sherlock uses CRISPR, short for Clustered, Regularly Interspaced Short Palindromic Repeats, a gene editing technique covered in detail in a previous Herman Trend Alert. The beauty of Sherlock is that it bypasses the need for traditional reagents and swabs. Imagine having a test so reasonable that you could afford to test your whole family---every week.
Imagine a Test with Immediate Results
Other Tests Recently Approved
Next Week: Pool Testing then on the 26th, Acknowledging Vaccine Progress Again, special thanks to my new friend Craig McDermott and MedCram.com, a site where, if you have the time and you can handle the sometimes-complicated science, you can learn a lot.
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