Fig. 2From: A fast extraction-free isothermal LAMP assay for detection of SARS-CoV-2 with potential use in resource-limited settingsSensitivity and specificity of LAMP assay compared to qRT-PCR on samples from St. George’s Hospital, London, the crosstables show true positives (pos/pos), true negatives (neg/neg), false positives (neg/pos) and false negatives (pos/neg) of the LAMP assays compared to qRT-PCR; A N primers and B Orf1ab primers from Yu et al. [16]Back to article page