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 or PNH is a rare and chronic disease that results in an abnormal breakdown of red blood cells. PNH is due to a spontaneous genetic mutation that causes red blood cells to be deficient in a protein, leaving them fragile.
Paroxysmal nocturnal hemoglobinuria (PNH) Paroxysmal nocturnal hemoglobinuria is a rare disease in which red blood cells break down earlier than normal. People with this disease have blood cells that are missing a gene called PIG-A. This gene allows a substance called glycosyl-phosphatidylinositol (GPI) to help certain proteins stick to cells.