Fig. 2From: CXCL9, a promising biomarker in the diagnosis of chronic Q feverChemokine production in whole blood cultures. a–d Chemokine production in whole blood cultures of healthy controls (n = 15), past Q fever infected patients (n = 20) and chronic Q fever patients (n = 36) after 24 h stimulation with C. burnetii 107/mL compared to culture medium RPMI. Medians with IQR are indicated. Kruskal Wallis with Dunn’s multiple comparisons test was performed. *: p < 0.05, **: p < 0.01, ***: P < 0.001, ns: not significant. Abbreviations: RPMI, Roswell Park Memorial Institute Medium; Cb NM, C. burnetii Nine Mile, IQR, Interquartile rangeBack to article page