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Diseases » Chickenpox » Prevalence
 

Prevalence and Incidence of Chickenpox

Incidence (annual) of Chickenpox:

120,624 annually (1995); 46,016 annual cases notified in USA 1999 (MMWR 1999); 199.14 per 100,000 in Canada 20001 ... see also overview of Chickenpox.

Incidence Rate:

approx 1 in 2,254 or 0.04% or 120,624 people in USA [Source statistic for calcuation: "120,624 annually (1995); 46,016 annual cases notified in USA 1999 (MMWR 1999); 199.14 per 100,000 in Canada 20001" -- see also general information about data sources]

Incidence extrapolations for USA for Chickenpox:

120,624 per year, 10,052 per month, 2,319 per week, 330 per day, 13 per hour, 0 per minute, 0 per second. [Source statistic for calculation: "120,624 annually (1995); 46,016 annual cases notified in USA 1999 (MMWR 1999); 199.14 per 100,000 in Canada 20001" -- see also general information about data sources]

Incidence of types of Chickenpox:

For details see incidence of types of Chickenpox analysis; summary of available incidence by type data:

Prevalance of Chickenpox:

Almost everyone gets chickenpox by adulthood (more than 95% of Americans). Chickenpox is highly contagious. CDC estimates that 4 million cases occur each year. (Source: excerpt from Facts About Chickenpox (Varicella): CDC-OC)

More Statistics about Chickenpox:

  • Deaths and related statistics
  • Hospitalization statistics
  • All statistics for Chickenpox

    About prevalence and incidence statistics:

    The term 'prevalence' of Chickenpox usually refers to the estimated population of people who are managing Chickenpox at any given time. The term 'incidence' of Chickenpox refers to the annual diagnosis rate, or the number of new cases of Chickenpox 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.

    Footnotes:
    1. Notifiable Diseases Online, PPHB, Canada, 2000

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