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.
Because PNH is. thought to come from an injury to a blood stem cell (a cell in. your bone marrow which produces other cells), PNH can devel-. op in all three types of blood cells â red blood cells which carry. oxygen to your body, white blood cells which help fight infec-.