TABLE 3

Survival of H. ducreyi in phagocytic cells and in the monocyte cell line THP-1

Straina% of the initial inoculum recovered from the following cellsb after the indicated h:
Granulocytes (macrophages)THP-1 cells
220220
H. ducreyi
CCUG 7470 (CDT+, long LOS)11.00 ± 1.4 (2.71 ± 1.1)0.03 ± 0.2 (0.09 ± 0.01)6.46 ± 0.280.02 ± 0.00
CCUG 27022 (CDT, long LOS)7.50 ± 0.1 (1.66 ± 0.6)0.03 ± 0.0 (0.08 ± 0.001)5.13 ± 0.480.02 ± 0.001
CCUG 4438 (CDT, short LOS)2.00 ± 0.2 (1.10 ± 0.2)0.001 ± 0.0 (0.004 ± 0.00)1.51 ± 0.180.001 ± 0.002
H. influenzae0000
  • a CDT+ and CDT, presence or absence of CDT production.

  • b Results are reported as the mean and SD for three independent experiments.