Fig. 1From: The prevalence and genotypic analysis of Toxoplasma gondii from individuals in Scotland, 2006–2012Frequency distribution of logODc values generated from Scottish blood donors (n = 947, period 1) using the human anti-IgG T. gondii ELISA. Bars represent individual blood donors, and the curved line shows the normal distributions fitted by binomial mixture analysis. The black dashed line indicates the cut-off value (log ODc -0.48) used for subsequent analysisBack to article page