2011-2012 Drinking Water-associated Outbreak Surveillance Report: Supplemental Figures

These tables provide supplemental information not published in Surveillance for Waterborne Disease Outbreaks Associated with Drinking Water — United States, 2011–2012 (MMWR Weekly).

Number of Waterborne-Disease Outbreaks Associated with Drinking Water* — Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing number of waterborne-disease outbreaks associated with drinking water in 2011-2012

* N=32. These numbers are largely dependent on reporting and surveillance activities in individual states, and do not necessarily indicate the true incidence of waterborne disease outbreaks in a given state.

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Etiology of Drinking Water Outbreaks* and Outbreak-related Cases†, Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing etiology of drinking water outbreaks and outbreak-related cases in 2011-2012

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Predominant Illness in Drinking Water Outbreaks* and Outbreak-related Cases†, Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing predominant illness in drinking water outbreaks and outbreak-related cases in 2011-2012

Abbreviations: AGI: acute gastrointestinal illness; ARI: acute respiratory illness

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Predominant Illness Reported for all Drinking Water Outbreaks, and Etiologies in Outbreaks of Acute Gastrointestinal Illness (AGI), Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing predominant illness reported for all drinking water outbreaks and etiologies in outbreaks of acute gastrointestinal illnesses in 2011-2012

Abbreviations: AGI: acute gastrointestinal illness; ARI: acute respiratory illness

* All acute respiratory illness was attributed to Legionella spp.

† The outbreak with multiple etiologies involved bacterial and parasitic agents.

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Water Systems Associated with Drinking Water Outbreaks* and Outbreak-related Cases†, Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing water systems associated with drinking water outbreaks and outbreak-related cases in 2011-2012

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Water Sources Associated with Drinking Water Outbreaks* and Outbreak-related Cases†, Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing water sources associated with drinking water outbreaks and outbreak-related cases in 2011-2012

§ Includes outbreaks with mixed water sources (i.e. ground water and surface water). Two giardiasis outbreaks were associated with mixed source community water systems.

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Deficiencies Assigned to Drinking Water Outbreaks* and Outbreak-related Cases†, Waterborne Disease and Outbreak Surveillance System, 2011–2012

Graphs showing deficiencies assigned to drinking with outbreaks and outbreak-related cases in 2011-2012

§ Multiple deficiencies were assigned to one giardiasis outbreak which contributed 21 cases: untreated surface water and untreated ground water.

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