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Gastric mucosal microcirculation after topical administration of a cagA+/vacA+ strain of H pylori. (A) Platelets appear as adherent thrombi (pt) or circulating emboli (pe) within the capillaries and post-capillary venules (PCV). (b) Increased leucocytes (arrows) are observed rolling or adherent within the microvessels. These images were not obtained for strains 60190 vacA::km and J154.
