To determine whether the reduced ROS accumulation and apoptotic activity, particularly in G6PD-deficient cells, was due to deceased α-hemolysin expression upon VRSA infection in the presence of vancomycin, the production of intracellular ROS and cell apoptosis when the α-hemolysin inhibitor Oroxylin A was added to the media was quantified by flow cytometry. This evidence concerns the gene G6PD and infection.