Fact check: Did Iceland really ‘eradicate’ Down syndrome in that country?
A viral claim that Iceland has nearly eliminated Down syndrome births through abortion is investigated. The claim originates from a 2017 CBS News report citing a 100% termination rate among women who received a positive prenatal test. Icelandic sources explain that the 100% figure applies only to a subset; overall, about 75‑80% of women who screen positive pursue further testing, and 20‑25% continue pregnancies. Approximately one‑third of Icelandic mothers decline screening or choose to continue pregnancies after a positive result, indicating Down syndrome is not eradicated.
3 months ago
Iceland has not eliminated births of children with Down syndrome; while prenatal screening is widespread and most pregnancies diagnosed with the condition are terminated, a notable proportion of women either decline screening or continue pregnancies after a positive result, resulting in a small number of births each year. 1 2
The claim that Iceland “eradicated” Down syndrome stems from a 2017 CBS News report that said almost 100 % of women receiving a positive prenatal test for Down syndrome chose abortion. The story quoted geneticist Kári Stefánsson saying the condition was “hardly ever” seen in Iceland. 1
Icelandic health officials clarified that the 100 % termination rate applied only to a subset of women who pursued full diagnostic testing after a high‑risk screening result. About 80‑85 % of pregnant women undergo screening; of those with a high‑risk result, 75‑80 % proceed to confirmatory testing, and roughly 20‑25 % of that group decline further testing and continue the pregnancy. Overall, about one‑third of mothers either skip screening or stop after a positive screen, resulting in births of children with Down syndrome. 1 2
A 2020 study of Icelandic data (2012‑2016) found that 79 % of pregnant women chose first‑trimester screening (16,649 tests). Of the 333 high‑risk screens, 44 cases were confirmed as Down syndrome; 43 pregnancies were terminated and one child was born. During the same five‑year period, 12 children with Down syndrome were born – five to mothers who declined screening, six after false‑negative results, and one after a confirmed diagnosis was continued. 1
Official 2024 figures show 4,311 births and 1,147 abortions in Iceland, but they do not break down how many involved Down‑syndrome diagnoses. A March 2026 UN regional report noted that 80‑85 % of Icelandic women still undergo screening and that “nearly all” confirmed Down‑syndrome pregnancies are terminated, leaving only two to three such births per year. 2
The narrative that Iceland has eradicated Down syndrome is an oversimplification. While prenatal screening is common and most confirmed cases lead to termination, a consistent minority of women either avoid screening or choose to continue the pregnancy, resulting in a small but ongoing number of births with Down syndrome each year. 1 2*
Icelandic abortion practices do not eradicate Down syndrome
High abortion rates after prenatal diagnosis in Iceland do not eradicate Down syndrome, and the Church’s moral teaching applies regardless of what any country’s statistics are.
A frequently repeated claim is that widespread abortion of fetuses diagnosed with Down syndrome could “eliminate” the condition in a population. But abortion cannot be a real, lasting eradication of Down syndrome, because Down syndrome is caused by an additional chromosome (Trisomy 21) and new conceptions occur continually.
One of the key arguments made in the material you provided is explicit: “Such a cure of the condition lasts only so long as no other woman conceives… and then what was cured or eliminated must be cured or eliminated again.”
So even if a society terminates pregnancies at very high rates after prenatal diagnosis, the underlying genetic cause keeps producing new cases, meaning the condition is not truly eliminated by abortion.
The US bishops’ disability-and–pro-life advocacy materials refer to Iceland as reporting “a nearly 100% abortion rate” for pregnancies where Down syndrome is diagnosed (in that context).
But a “nearly 100% abortion rate” refers to abortion decisions among diagnosed pregnancies—it does not follow that Down syndrome is eliminated from the human population. Your supplied sources support exactly the distinction above: high termination rates may strongly reduce the number of children born with Down syndrome at a point in time, while the condition continues to arise with new pregnancies.
Even if one could argue about the sociological effects of abortion policies, Catholic doctrine is clear about the moral character of directly choosing abortion:
So even where a narrative might be tempted to justify abortion as “prevention,” the Church frames that approach as not licit and as rooted in eugenics rather than in genuine support for persons with disabilities.
From the reasoning and moral teaching in the sources you provided, Icelandic practices—however high the abortion rate after Down syndrome diagnosis—do not eradicate Down syndrome in any lasting way, because new cases continue to arise with new conceptions.
Catholic teaching simultaneously insists that direct abortion is gravely wrong and that disability-driven selection reflects an eugenic mentality that must be strongly discouraged.