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.
Although it is not yet fully known what causes PNH, all. patients areless able to produce blood cells. They also have. abnormal red blood cells that may be destroyed by their. immune system. PNH is a disor der that affects men and women. of all races, backgrounds, and ages.