Fig. 5From: Upconverting phosphor technology-based lateral flow assay for the rapid and sensitive detection of anti-Trichinella spiralis IgG antibodies in pig serumCut-off threshold of the UPT-LF-ES assay. The cut-off thresholds were obtained by 169 known negative serum samples, including a low specificity cut-off (ratio: 0.1906) and a high specificity cut-off (ratio: 0.3233). AV, Average value; HA, Highest valueBack to article page