National Botulism Surveillance
Since 1973, CDC, in partnership with the Council of State and Territorial Epidemiologists (CSTE), has maintained the National Botulism Surveillance System for intensive surveillance for cases of botulism in the United States. The National Botulism Surveillance System collects reports of all confirmed botulism cases in the United States and is continuously monitored for early detection of outbreaks.
Demographic (e.g., age, sex, race and ethnicity), clinical (e.g., transmission category, case-patient outcome), laboratory (e.g., laboratory testing method, toxin type), and epidemiologic (e.g., vehicle) data are reported by all 50 states and the District of Columbia. To be confirmed, cases must meet the CSTE case definition of botulism.
For surveillance purposes, CDC categorizes human botulism cases into four transmission categories: foodborne, wound, infant, and “other”.
- Foodborne botulism is caused by the consumption of foods containing pre-formed botulinum toxin.
- Wound botulism is caused by toxin produced in a wound infected with Clostridium botulinum.
- Infant botulism by definition occurs in persons less than one year of age and is caused by consumption of spores of C. botulinum, which then grow and release toxins in the intestines.
- “Other” botulism: consistent with the Council of State and Territorial Epidemiologists (CSTE) position statements, the “other” category includes botulism in which the route of transmission is unknown. Cases are classified as “other” if the patient is not an infant, has no history of ingesting a suspect food, and has no wounds. The “other” category also includes iatrogenic botulism, which is caused by an accidental overdose of botulinum toxin (i.e., therapeutic injection), and adult intestinal colonization botulism, which is very rare but is believed to occur through a mechanism similar to infant botulism.
All data regarding antitoxin releases and laboratory confirmation of cases are recorded annually by CDC and published on this website. Because CDC, theAlaska Division of Public Health, and the California Department of Public Health (CDPH), are the only sources of botulism antitoxin administered in the United States, nearly all recognized cases of botulism are reported. More about Botulism.
Annual Summaries of Botulism Surveillance Reported to CSTE
- 2014 CSTE Botulism Surveillance Summary[PDF - 5 pages]
- 2013 CSTE Botulism Surveillance Summary[PDF - 8 pages]
- 2012 CSTE Botulism Surveillance Summary[PDF - 8 pages]
- 2011 CSTE Botulism Surveillance Summary[PDF - 7 pages ]
- 2010 CSTE Botulism Surveillance Summary[PDF - 8 pages]
- 2009 CSTE Botulism Surveillance Summary[PDF -8 pages]
- 2008 CSTE Botulism Surveillance Summary[PDF - 10 pages]
- 2007 CSTE Botulism Surveillance Summary[PDF - 11 pages]
- 2006 CSTE Botulism Surveillance Summary[PDF - 8 pages]
- 2005 CSTE Botulism Surveillance Summary[PDF - 11 pages]
- 2004 CSTE Botulism Surveillance Summary[PDF - 9 pages]
- 2003 CSTE Botulism Surveillance Summary[PDF - 9 pages]
- 2002 CSTE Botulism Surveillance Summary[PDF - 9 pages]
- 2001 CSTE Botulism Surveillance Summary[PDF - 9 pages]
Suspected Botulism Case Consultation
To identify possible cases and outbreaks of botulism as rapidly as possible, CDC provides clinical and epidemiologic consultation, distributes antitoxin, and provides laboratory diagnostic services to state and local health departments in suspected non-infant botulism cases. Infant botulism consultation and surveillance are handled by the Infant Botulism Treatment and Prevention Program (IBTPP), Division of Communicable Disease Control (DCDC), California Department of Public Health (CDPH). Physicians are urged to contact their departments of health as soon as they suspect that a patient may have botulism. State health departments maintain emergency contact numbers and, in concert with CDC, can provide guidelines on diagnosis, management, and prevention of botulism.
Consultation at EDEB is available 24 hours a day for emergency response for potential cases of botulism at (770) 488-7100. Consultation for infant botulism is also available 24 hours a day by IBTPP of the CDPH at (510) 231-7600. In concert with the state epidemiology offices, CDC epidemiologists and microbiologists recommend appropriate laboratory testing (performed either at CDC or in state laboratories) and ancillary studies for all suspected cases of botulism.
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