Statistics about Giardia

Prevalence and incidence statistics for Giardia:

See also prevalence and incidence page for Giardia

Incidence (annual) of Giardia: 16.29 per 100,000 in Canada 2000¹

Incidence Rate: approx 1 in 6,138 or 0.02% or 44,308 people in USA [about data]

Incidence extrapolations for USA for Giardia: 44,308 per year, 3,692 per month, 852 per week, 121 per day, 5 per hour, 0 per minute, 0 per second. Note: this extrapolation calculation uses the incidence statistic: 16.29 per 100,000 in Canada 2000¹

Prevalance of Giardia: The overall incidence of infection in the United States is estimated at 2% of the population. Giardiasis is the most frequent cause of non-bacterial diarrhea in North America. (Source: FDA Bad Bug Book) ... Giardiasis is more prevalent in children than in adults, possibly because many individuals seem to have a lasting immunity after infection. This organism is implicated in 25% of the cases of gastrointestinal disease and may be present asymptomatically. The overall incidence of infection in the United States is estimated at 2% of the population. (Source: FDA Bad Bug Book)

Giardia Prevalence: Book Excerpts

• Causes and incidence - Giardiasis
• Causes and incidence - Colorado tick fever
• Causes and incidence - Lassa fever
• Causes and incidence - Relapsing fever
• Causes and incidence - Rheumatic fever and rheumatic heart disease
• Causes and incidence - Rocky Mountain spotted fever
• Giardiasis - epidemiology - Giardiasis

About statistics:

This page presents a variety of statistics about Giardia. The term 'prevalence' of Giardia usually refers to the estimated population of people who are managing Giardia at any given time. The term 'incidence' of Giardia refers to the annual diagnosis rate, or the number of new cases of Giardia 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

 » Next page: Statistics by Country for Giardia

Rate This Website

What do you think about the features of this website? Take our user survey and have your say:

Website User Survey

Medical Tools & Articles:

Next articles:

• Statistics by Country for Giardia
• Hospital Statistics for Giardia
• Travel and Giardia
• Articles about Giardia
• Glossary for Giardia

Tools & Services:

• Bookmark this page
• Take a survey relating to Giardia
• Symptom Search
• Symptom Checker
• Medical Dictionary
• Give your feedback

Medical Articles:

• Disease & Treatments Search
• Misdiagnosis Center
• Full list of interesting articles

Forums & Message Boards

• Ask or answer a question at the Boards:
• I cannot get a diagnosis. Please help.
• Tell us your medical story.
• Share your misdiagnosis story.
• What is the best treatment for my condition?
• See all the Boards.

Enter your search terms Submit search form
Search The Web Search wrongdiagnosis.com

Common Health Mistakes

Symptom
Checker

Search Specialists by State and City