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Diseases » Tay Sachs Disease » Prevalence

Prevalence and Incidence of Tay Sachs Disease

Tay Sachs Disease: Rare Disease

Tay Sachs Disease is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Tay Sachs Disease, or a subtype of Tay Sachs Disease, affects less than 200,000 people in the US population.

Ophanet, who are a consortium of European partners, currently defines a condition rare when if affects 1 person per 2,000. They list Tay Sachs Disease as a "rare disease". More information about Tay Sachs Disease is available from Orphanet

About prevalence and incidence statistics:

The term 'prevalence' of Tay Sachs Disease usually refers to the estimated population of people who are managing Tay Sachs Disease at any given time. The term 'incidence' of Tay Sachs Disease refers to the annual diagnosis rate, or the number of new cases of Tay Sachs Disease diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.


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