Volume 22, Number 11—November 2016
Research
Immune Responses to Invasive Group B Streptococcal Disease in Adults
Figure 4

Figure 4. Pilus-specific antibody responses in acute- and convalescent-phase serum from patients infected with group B streptococcal strains expressing pilus type 1 or type 2a, Houston, Texas, USA. Anti-pilus–specific IgG titers were measured by multiplex immunoassay that used recombinant pilus proteins coupled to magnetic beads and expressed in RLU/mL. Horizonal bars represent the median (± interquartile range) within each population. For both comparisons, anti-pilus IgG increased significantly in serum collected during the acute and convalescent phases (p<0.001). p values were calculated by t-test on log-transformed data. Conv, convalescent; RLU, relative Luminex units.
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