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Giardiasis summary report 2015 : National Notifiable Diseases Surveillance System, United States
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2019
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Description:Giardiasis is an illness caused by the protozoan parasite Giardia duodenalis (formerly called G. lamblia or G. intestinalis), which causes gastrointestinal symptoms such as diarrhea, abdominal cramps, bloating, weight loss, or malabsorption (1, 2). Each year in the United States, it is estimated that Giardia causes more than 1.2 million illnesses (3).
Giardiasis is a nationally notifiable disease; the first full year of reporting was 1993. National data are collected through passive surveillance. Healthcare providers and laboratories that diagnose confirmed giardiasis cases report to the local or state health departments. State and territorial health departments, the District of Columbia (DC), and the New York City health departments, in turn, voluntarily notify CDC of cases via the National Notifiable Disease Surveillance System (NNDSS). The number of health departments submitting can vary from year to year depending on which states have designated giardiasis as reportable in their jurisdictions.
State, DC, US territory, and Freely Associated State public health agencies voluntarily notify CDC of giardiasis outbreaks via the National Outbreak Reporting System (NORS). NORS data are not presented here; however, summaries of data on waterborne disease outbreaks are published elsewhere.
Suggested citation: Centers for Disease Control and Prevention (CDC). Giardiasis Summary Report —National Notifiable Diseases Surveillance System, United States, 2015. Atlanta, Georgia: U.S. Department of Health and Human Services, CDC, 2019
CS314142-A
2015-Giardiasis-NNDSS-Report-508.pdf
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Pages in Document:15 numbered pages
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