Many countries are focusing coronavirus testing on people who have covid-19 symptoms. But regularly testing all essential workers would have more of an impact
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https://www.newscientist.com/article/mg24632812-700-why-countries-should-start-weekly-covid-19-testing-for-key-workers/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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