Fig. 4From: Toxoplasma gondii in small exotic felids from zoos in Europe and the Middle East: serological prevalence and risk factorsCorrelation of Toxoplasma gondii titer values in venous (V) and bug-derived plasma, in Dm0, immediate after sampling (a) and in Dm1, sampling one hour after the engorgement was completed (b). Spearmanʼs test, V vs Dm0: r = 0.952, P < 0.001; V vs Dm1: r = 0.954, P < 0.001; linear regression lines were drawn using Microsoft Excel 2010Back to article page