The title of this article is incorrect. The correct title is: Is no test better than a bad test: Impact of diagnostic uncertainty on the spread of COVID-19. The correct citation is: Gray N, Calleja D, Wimbush A, Miralles-Dolz E, Gray A, De Angelis M, et al. (2020) Is no test better than a bad test: Impact of diagnostic uncertainty on the spread of COVID-19. PLoS ONE 15(10): e0240775. https://doi.org/10.1371/journal.pone.0240775