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) may cause unpredictable episodes of acute red blood cell destruction (hemolysis). This occurs when a part of your immune system called complement attacks red blood cells that lack certain protective proteins.
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.