Confidence votes 11. According to Wikipedia, the width of the Atlantic Ocean at its narrowest point is 2,848 kilometers (1,770 mi) between Brazil and Sierra Leone.
Paroxysmal nocturnal hemoglobinuria (PNH) may cause unpredictable episodes of acute red blood cell destruction (hemolysis). This occurs when a part of your immune system called complement attacks red blood cells that lack certain protective proteins.
You may have many symptoms, or just one or two. And you may get a new symptom at any point in the course of your illness. The severity and number of symptoms are often related to the size of your PNH clone and how much blood cell destruction is happening.