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Diseases » Syphilis » Incidence
 

Incidence Statistics for Types of Syphilis

The information below shows a list of types of Syphilis, with information as to the annual incidence of each of these types of Syphilis. Estimates of the people affected each year are calculated based on the available statistics.

Incidence Statistics for Types of Syphilis

Disease

Incidence Estimate

US people estimate

Statistic Used for Calculation

Primary syphilis N/A N/A No information
Secondary syphilis N/A N/A No information
Latent syphilis N/A N/A No information
Tertiary syphilis N/A N/A No information
Late syphilis N/A N/A No information
Congenital syphilis approx 1 in 489,208 or 0.00% or 556 people in USA 556 556 annual cases notified in USA 1999 (MMWR 1999)

Incidence Statistics for Syphilis


Incidence of Syphilis:

70,000 cases (NIAID; CDC 2001)

Incidence Rate:

approx 1 in 3,885 or 0.03% or 70,000 people in USA [about data]

Incidence of Syphilis:

An estimated 70,000 sexually transmitted infections with Treponema pallidum, the cause of syphilis, occur each year in the United States. (Source: excerpt from Sexually Transmitted Diseases Statistics, NIAID Fact Sheet: NIAID) ... In 1997, 8,550 cases of primary and secondary syphilis in the United States were reported to the CDC, a case rate of 3.2/100,000. (Source: excerpt from Sexually Transmitted Diseases Statistics, NIAID Fact Sheet: NIAID) ... The incidence of syphilis has increased and decreased dramatically in recent years, with more than 11,000 cases reported in 1996. (Source: excerpt from Sexually Transmitted Diseases, NIAID Fact Sheet: NIAID)

Incidence statistics about Syphilis:

The following statistics relate to the incidence of Syphilis:

  • 70,000 new cases annually in America (Tracking The Hidden Epidemics, CDC, 2002)
  • 37,977 cases annually in the USA (1998)
  • 31,575 new cases of syphilis occurred annually in the US 2000 (Health, United States: 2002, NCHS, CDC)
  • 35,628 annual cases including 6,657 primary/secondary cases notified in USA 1999 (MMWR 1999)
  • 0.29 per 100,000 in Canada 20001
  • Estimated 70,000 new cases each year in the USA 2002 (Trends in STD’s in the US, CDC, 2002)
  • 2.2 cases per 100,000 people in America 2000 (NCHS, 2003)
  • 613 new cases of syphilis in England and Wales 2001(PHLS, London, 2002)
  • 605% increase in syphilis incidence in England and Wales 1996-2001(PHLS, London, 2002)
  • 8.3 new cases of syphilis per 100,000 population was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
  • 1,627 new cases of syphilis was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)

Types of Syphilis

For more information about types of Syphilis, refer to our section on types of Syphilis.

About incidence:

The medical term 'incidence' of Syphilis usually refers to the annual diagnosis rate of new cases of Syphilis. Prevalence is a different medical disease measure that refers to the estimated population of people who are managing Syphilis at any given time (e.g. prevalence includes people who have had a medical condition for a long time). For more information on prevalence and incidence statistics, see about prevalence and incidence statistics.



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

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