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Newborn Screening Ontario
About Screening

Diseases Screened

Newborn Screening Ontario (NSO) screens newborn blood spot samples for 29 diseases.Throughout 2017, bedside screening will begin for Critical Congenital Heart Disease.

The diseases are:

  • Metabolic Diseases - where the body is unable to break down certain substances in foods, like fats, proteins or sugars
  • Endocrine Diseases - where the body produces too much or too little of certain hormones
  • Sickle Cell Disease (SCD) -  which affects the movement of oxygen in the blood
  • Cystic Fibrosis (CF) -  which causes problems with breathing and growth
  • Severe Combined Immune Deficiency (SCID) -  which affects the body’s ability to fight infections
  • Critical Congenital Heart Disease (CCHD) – where there are low levels of oxygen in a baby’s blood

Please visit our Disease Information page for more information about these diseases.