Fig. 1

Serum amyloid A (SAA) concentrations (a), and proportions of cats showing increased alpha 2 globulins (b) and increased gamma globulins (c) on serum protein electrophoresis (SPE), in healthy control cats (G1: n = 16; 15 serum samples for SPE), cats affected by neoplastic or inflammatory conditions  (N/I) (G2: n = 20), cats seropositive and qPCR-negative for Leishmania infantum (L+/-) (G3: n = 20) and cats seropositive and qPCR-positive for L. infantum (L+/+) (G4: n = 12; 11 serum samples for SAA). a Red boxplots indicate the median (solid line) within each box and the range of dispersion (lower and upper quartiles and outliers); means and standard errors are represented by green lines and blue T-bars, respectively; the letters above boxplots indicate significant differences among groups (Dunn’s test with Bonferroni correction, P < 0.05). b, c letters above columns indicate significant differences among groups (generalised linear model, binomial distribution, P < 0.05)