Corocher, T., Edwards, K., Hersusianto, Y., Campbell, D., Lim, H. Y., Monagle, P., Ho, P. (2025). Over-the-counter carrageenan-based sprays may interfere with PCR testing of nasopharyngeal swabs to detect SARS-CoV-2. PLoS ONE. https://doi.org/10.1371/journal.pone.0316700