Covid-19 news: Conflicting results raise questions over PCR tests – News Nation USA

By Michael Le Page, Clare Wilson, Jessica Hamzelou, Sam Wong, Graham Lawton, Adam Vaughan, Conrad Quilty-Harper, Jason Arunn Murugesuand Layal Liverpool
A hand dripping a sample and test solution onto a lateral flow test.
David Gee / Alamy Stock Photo
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