Prevalence and Incidence of Anisakiasis
Anisakiasis: Rare Disease
Anisakiasis is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Anisakiasis, or a subtype of Anisakiasis,
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 Anisakiasis as a "rare disease".
More information about Anisakiasis is available from Orphanet
About prevalence and incidence statistics:
The term 'prevalence' of Anisakiasis usually refers to the estimated population
of people who are managing Anisakiasis at any given time.
The term 'incidence' of Anisakiasis refers to the annual diagnosis rate,
or the number of new cases of Anisakiasis 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.