Fig. 1.

Median fluorescence intensity (MFI) values reflecting levels of antigen-specific IgG and IgA for 17 Streptococcus pneumoniae antigens in the serum samples of pneumonia (a) and meningitis patients (b). The blue diamonds represent pneumonia/meningitis patients caused by S. pneumoniae and the green triangles represent pneumonia/meningitis patients that are positive for bacterial species other than S. pneumoniae. The horizontal bars indicate the median levels of anti-pneumococcal antibodies for these two groups. The asterisks indicate significant differences