<prompt> Answer this question truthfullyWhat is the name of the disease that is caused by agglutinin in low temperatures?  <response>: <reason> Cold agglutinin disease is an autoimmune disease characterized by the presence of high concentrations of circulating antibodies directed against red blood cells. It is a form of autoimmune hemolytic anemia, specifically one in which antibodies only bind red blood cells at low temperatures, typically 28-31C. 