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.
PNH is genetic. But you don't get it from your parents, and you can't pass it on to your kids. A change in a gene, called a mutation, causes your body to make abnormal red blood cells. These cells donât have proteins that shield them from your immune system. So your body breaks them down.