Fig. 5

Increased levels of MPO in patient tissue biopsies associated with SpeB− GAS. A Representative immunofluorescence micrographs of the distribution of MPO in patient biopsies are shown. B Image analyses of MPO and C GAS stainings. Calculation of the stained area (px2) per analyzed micrograph is presented. Each bar within diagrams denotes analysis of one image from indicated tissue biopsies. Bars on the right of each diagram denote mean values ± SD. The level of significance between the groups was determined using 2-tailed Mann–Whitney U test