Table 2.

Phagocytic ingestion of B. cereus strains cultured for 1, 3, or 6 days

StrainLength of culture (days)Phagocytic ingestion valuea after incubation for:
None30 min60 min
% PMNB/PMN% PMNB/PMN% PMNB/PMN
OH599100946.481008.48
30020.07361.33
6000020.05
OH600100946.301008.40
30000100.12
6000010.01
ATCC 434210030.0300
6000000
ATCC 14579T 1000030.06
60020.0260.11
  • a At least 50 PMNs were counted in each assay and the average of two parallel samples is given. Representative results of one of the three separate experiments are shown here. % PMN, percentage of PMNs having ingested at least one bacterium; B/PMN, average number of bacteria ingested per PMN.