One cytotoxic reaction to it is the Type II hypersensitivity reaction in newborns known as erythroblastosis fetalis.  
One cytotoxic reaction to it is the Type II hypersensitivity reaction in newborns known as erythroblastosis fetalis.  When blood-donors are not properly screened for its presence, hemolysis can result in transfusion recipients as a result of their bodies producing agglutinins in response to its introduction.  First described when rabbits were injected by Wiener and Landsteiner with a different animal's blood, FTP, identify this blood protein, separate from the ABO group and which was named for a certain type of monkey.
One cytotoxic reaction to it is the Type II hypersensitivity reaction in newborns known as erythroblastosis fetalis.  
Rh or Rhesus Factor