FIG 2.

S. aureus bacterial dynamics during interaction with human neutrophils. (A) Representative experiments corresponding to bacterial growth in the absence of neutrophils, effective control of bacteria with a relatively high density of neutrophils, and an intermediate outcome at a lower density of neutrophils. Bottom line indicates the limit of detection (LOD), 1 pixel. (B) Net change in S. aureus bacterial area after a 4-h interaction with human neutrophils. Higher initial neutrophil numbers resulted in a net decrease in attached bacteria; n = 55 fields of view (17 bacteria only, 38 bacteria plus neutrophils) from 10 independent experiments.