GBS genes involved in virulence significantly up-regulated in human blood.

Seven genes involved in cell-to-cell contact, adhesion to fibrinogen, and coagulation/fibrinolysis processes were up-regulated after 30 min of incubation with blood (time 1 relative to time 0). Six of these genes were also up-regulated after 90 minutes of incubation (time 2 relative to time 0). aGAPDH: glyceraldehyde 3-phosphate dehydrogenase.