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.
Symptoms and Diagnosis of Paroxysmal Nocturnal Hemoglobinuria. Hemolysis in PNH can cause acute, severe anemia associated with severe abdominal spasms, headaches, back pain, weakness, occasionally blood clots in unusual places in the body, and extreme fatigue. However, some people with PNH experience no discomfort.