<prompt> Hemolytic uremic syndromeMost commonly caused by verocytogenic E.ColiCauses mild to severe coombs positive hemolytic anemiaRecurrences rareTransient thrombocytopenia  <response>: Hemolytic uremic syndrome: Caused by deficiencies of complement regulatory proteins or agents that damage endothelial cells, such as a Shiga-like toxin elaborated by E. coli strain O157:H7. The endothelial injury initiates platelet activation, platelet aggregation, and microvascular thrombosis. Ref: ROBBINS BASIC PATHOLOGY 10th ed Pg no: 491 