Prevalence and Incidence of Typhoid fever

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

Incidence (annual) of Typhoid fever: 346 annual cases notified in USA 1999 (MMWR 1999)
Incidence Rate: approx 1 in 786,127 or 0.00% or 346 people in USA [about data]
Worldwide prevalence of Typhoid fever:estimated 16 million cases of typhoid fever (DBMD)
Prevalance of Typhoid fever: In the United States about 400 cases occur each year, and 70% of these are acquired while traveling internationally. Typhoid fever is still common in the developing world, where it affects about 12.5 million persons each year. ¹

Incidence statistics about Typhoid fever: The following statistics relate to the incidence of Typhoid fever:

0.28 per 100,000 in Canada 2000²
16 cases in NJ 1998 (NJ DHSS)
0.4 new cases of typhoid per 100,000 population was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
73 new cases of typhoid was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)

Footnotes:
1. excerpt from Typhoid Fever (General): DBMD
2. Notifiable Diseases Online, PPHB, Canada, 2000

Last revision: June 23, 2003

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