The white ribbon stands for Severe Combined Immune Deficiency (SCID) and SCID Newborn Screening. Add the Twibbon to your profile picture to bring awareness to the SCID Newborn Screening Campaign and support bringing SCID Newborn Screening to all states. #SCID. SCID is Severe Combined Immune Deficiency and is the most severe of the Primary Immune Deficiency diseases. It is also known of as Bubble Boy disease.
For more info go to http://idfscidnewbornscreening.org/