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Mystery In Wuhan: Recovered Coronavirus Patients Test Negative ... Then Positive

Mystery In Wuhan: Recovered Coronavirus Patients Test Negative ... Then Positive

NPR - Emily Feng

A spate of mysterious second-time infections is calling into question the accuracy of COVID-19 diagnostic tools even as China prepares to lift quarantine measures to allow residents to leave the epicenter of its outbreak next month. It's also raising concerns of a possible second wave of cases. From …

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