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Illustration of AGS cells with intracellular H. pylori WT with H. pylori and VacA immunogold. AGS cell infected using a dual pre-embedding immunogold (H. pylori gold 18 nm and VacA-gold 11 nm) demonstrating the presence of 18 nm H. pylori gold particles (dashed arrow) and 11 nm VacA-gold particles in cytoplasm, in the cell membrane, in membrane vesicles, and in the AGS cell. Original magnification 71,000×.
