Over-the-counter carrageenan-based sprays may interfere with PCR testing of nasopharyngeal swabs to detect SARS-CoV-2. by Taylor Corocher, Kira Edwards, Yvonne Hersusianto, Donald Campbell, Hui Yin Lim, Paul Monagle, Prahlad Ho

“…This work demonstrated that in the presence of carrageenan samples return inaccurate and invalid results on the Seegene STARlet, while qualitative accuracy was maintained on the Cepheid GeneXpert, Roche Cobas LIAT, and Hologic Panther Aptima. …”
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