Key points
- National Shigella surveillance data are collected through passive surveillance of laboratory-confirmed human Shigella infections.
- Clinical diagnostic laboratories submit Shigella isolates to state and territorial public health laboratories, where they are confirmed, speciated, and subtyped.
- Unusual or untypable isolates are forwarded to CDC; results are then reported back to public health laboratories.
Surveillance overview
State and territorial public health laboratories report Shigella infections electronically to CDC through a variety of mechanisms. Data are collected into the Laboratory-Based Enteric Disease Surveillance (LEDS) system. The annual summaries of these data are the national source of species and subtype information for Shigella.
National Shigella Surveillance Overview [PDF – 2 pages]
Shigella Hypothesis Generating Questionnaire
The Shigella Hypothesis Generating Questionnaire, modeled after the National Hypothesis Generating Questionnaire, is a tool created for public health professionals to interview people who are experiencing diarrheal illness and are suspected or confirmed to have Shigella infection. The questionnaire investigates exposures related to shigellosis, including sexual contact, international travel, foodborne, and waterborne exposures.
Download questionnaire:
- 2016 Summary [PDF – 18 pages]
- 2015 Summary [PDF – 18 pages]
- 2014 Summary [PDF – 18 pages]
- 2013 Summary [PDF – 18 pages]
- 2012 Summary [PDF – 9 pages], Appendix [PDF – 8 pages]
- 2011 Summary [PDF – 9 pages], Appendix [PDF – 8 pages]
- 2010 Summary [PDF – 10 pages], Appendix [PDF – 8 pages]
- 2009 Summary [PDF – 3 pages], Summary Tables [PDF – 23 pages]
- 2008 Summary [PDF – 3 pages], Summary Tables [PDF – 21 pages]
- 2007 Summary [PDF – 3 pages], Summary Tables [PDF – 21 pages]