
Date
- 12th Mar 2026
Time
- ...
World Alloimmunization and HDFN Awareness Day

Alloimmunization and HDFN (Hemolytic Disease of the Fetus and Newborn) Awareness Day, also known as World Alloimmunization and HDFN Awareness Day, is observed annually on March 12 to raise awareness of a pregnancy complication in which maternal antibodies attack the red blood cells of an unborn baby.