Prevalence and Incidence of Rubella congenital syndrome
Ophanet, who are a consortium of European partners,
currently defines a condition rare when if affects 1 person per 2,000.
They list Rubella congenital syndrome as a "rare disease".
More information about Rubella congenital syndrome is available from Orphanet
Incidence (annual) of Rubella congenital syndrome:
9 annual cases notified in USA 1999 (MMWR 1999) ... see also overview of Rubella congenital syndrome.
approx 1 in 30,222,221 or 0.00% or 9 people in USA [Source statistic for calcuation: "9 annual cases notified in USA 1999 (MMWR 1999)" -- see also general information about data sources]
Incidence extrapolations for USA for Rubella congenital syndrome:
9 per year,
0 per month,
0 per week,
0 per day,
0 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "9 annual cases notified in USA 1999 (MMWR 1999)" -- see also general information about data sources]
About prevalence and incidence statistics:
The term 'prevalence' of Rubella congenital syndrome usually refers to the estimated population
of people who are managing Rubella congenital syndrome at any given time.
The term 'incidence' of Rubella congenital syndrome refers to the annual diagnosis rate,
or the number of new cases of Rubella congenital syndrome 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.