Screening History

2025
X-linked adrenoleukodystrophy (XALD) screening pilot begins.

2022
Guanidinoacetate methyltransferase (GAMT) deficiency and biliary atresia (BA) screening begins.

2020
Screening for spinal muscular strophy (SMA) and Hurler disease (“Mucopolysaccharidosis type 1H” or “MPS1H”) begins.

2019
Risk factor screening for permanent hearing loss (PHL) (CMV and genetic risk factors) begins.

2017
Screening for critical congenital heart disease (CCHD) begins

August 12, 2013
Severe combined immune deficiency (SCID) screening begins

April 7, 2008
Cystic fibrosis (CF) screening begins

May 14, 2007
Congenital adrenal hyperplasia (CAH) screening begins

February 28, 2007
Screening begins for biotinidase deficiency and galactosemia.

November 24, 2006
Hemoglobinopathy (HbSS, HbSC, and Hbs/ß-thalassemia) screening begins.

August 8, 2006
Screening begins for 18 additional metabolic conditions, including other fatty acid oxidation defects (FAODs), amino acidemias (AAs), and organic acidemias (OAs)

April 4, 2006
Newborn screening moves from Public Health Ontario to Newborn Screening Ontario (NSO) at the Children's Hospital of Eastern Ontario (CHEO). Screening continues for PKU and CH, and begins for medium chain acyl-CoA dehydrogenase deficiency (MCADD).

Congenital hypothyroidism (CH) screening begins

Newborn screening begins for phenylketonuria (PKU) by Public Health Ontario.