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) definition and facts. PNH is a rare, chronic disease that causes rapid breakdown of red blood cells and can result in reddish or cola-colored urine, often seen in the early morning after urination. PNH is due to a spontaneous mutation in gene material. PNH is not inherited.
Here are the steps that lead to PNH: 1  The abnormal stem cell makes copies of or clones itself. This leads to a whole population of stem cells that have mutant PIG-A. 2  The abnormal stem cells turn into mature red blood cells that have mutant PIG-A. These are called PNH red blood cells.