For how we live.
The country's blood-spot programme has run since 2003 and reaches nearly every baby. A pilot adds genomic sequencing — where a study of Qatari genomes suggests the biggest gains lie.
A mandatory citywide programme sequenced 782 genes in 1,000 prospective couples. The at-risk rate was double that of a comparable Australian study, and most flagged couples still chose to marry.
Chronic granulomatous disease is usually X-linked in Western cohorts. A multicentre Middle East and North Africa registry found the opposite pattern, alongside late diagnosis and a median survival of 8.5 years.
The elevated risk showed up even in babies with no detectable malformation — which is not what the standard recessive-disease explanation predicts.
Sequencing 6,141 people turned high consanguinity into a research advantage: it produced natural human knockouts that population studies elsewhere almost never see.