Fake news about the coronavirus can do real harm. Polygraph.info is spotlighting fact-checks from other reliable sources here​.Daily DebunkClaim: The PCR (polymerise chain reaction) test for COVID-19 also detects common cold viruses.Verdict: FalseRead the full story at: 
With little data on what works and what doesn’t, doctors trade tips and argue about risks
— Scientific American, June 29
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