2011—2012 Recreational Water-associated Outbreak Surveillance Report Supplemental Figures

These tables provide supplemental information not published in Outbreaks of Illness Associated with Recreational Water — United States, 2011–2012 (MMWR Weekly).

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Figure 1 — Recreational Water–associated Outbreaks, by Jurisdiction of Exposure* — United States, 2011–2012

State map showing recreational water-associated outbreaks  by jurisdiction of exposure from 2011-2012

*n=90; These numbers are largely dependent on surveillance and reporting activities in individual jurisdictions, and do not necessarily indicate the true occurrence in a given jurisdiction.

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Figure 2 — Recreational Water–associated Outbreaks, by Type of Exposure, Predominant Illness*, and Etiology — United States, 2011–2012

Pie charts showing recreational water-associated outbreaks from 2011-2012

Abbreviations/Terms: AGI: acute gastrointestinal illness; ARI: acute respiratory illness; Eye: illness, condition, or symptom related to eyes; Multiple: a combination of predominant illnesses/etiologies; Skin: illness, condition, or symptom related to skin.

*n=90; The category of illness reported by ≥50% of ill respondents.

†Percentages do not add up to 100.0% due to rounding.

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Figure 3 — Recreational Water–associated Outbreaks, by Predominant Illness* and Month — United States, 2011–2012

Graphs showing recreational water-associated outbreaks from 2011-2012

Abbreviations/Terms: AGI: acute gastrointestinal illness; ARI: acute respiratory illness; Eye: illness, condition or symptom related to eyes; Multiple: a combination of predominant illnesses; Skin: illness, condition, or symptom related to skin.

* n=90; The category of illness reported by ≥50% of ill respondents.

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Figure 4 — Recreational Water–associated Outbreaks of Acute Gastrointestinal Illness (AGI), by Type of Exposure, Etiology, and Water Type — United States, 2011–2012

Pie charts showing recreational water-associated outbreaks of acute gastrointestinal illness from 2011-2012

*Percentages do not add up to 100.0% due to rounding.

† Two untreated recreational water-associated outbreaks with multiple etiologies were reported.

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Figure 5 — Recreational Water–associated Outbreaks, by Predominant Illness* and Year — United States, 1978–2012

Graph showing recreational water-associated outbreaks from 1987-2012

Abbreviations/Terms: AGI: acute gastrointestinal illness; ARI: acute respiratory illness; Other: includes illness, condition, or symptom related to the ears or eyes; hepatitis; leptospirosis; meningitis; meningoencephalitis; and multiple predominant illnesses; Skin: illness, condition, or symptom related to the skin.

*n=879; The category of illness reported by ≥50% of ill respondents.

†All outbreaks of legionellosis (i.e., Legionnaires’ disease and Pontiac fever) are classified as ARI.

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Figure 6 — Recreational Water–associated Outbreaks of Acute Gastrointestinal Illness, by Type of Exposure* and Year — United States, 1978–2012

Graph showing recreational water-associated outbreaks of acute gastrointestinal illness from 1987-2012

*n=452; treated water, n=282; untreated water, n=170.

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Figure 7 – Recreational Water–associated Outbreaks of Acute Gastrointestinal Illness (AGI), by Type of Exposure and Etiology — United States, 2003-2012

Pie charts showing recreational water-associated outbreaks of acute gastrointestinal illness from 2003-2012

*Percentages do not add up to 100.0% due to rounding.

† These include outbreaks caused by: Campylobacter (n=2; treated water, n=1; untreated water, n=1), Plesiomonas (n=3; treated water, n=0; untreated water, n=3), cyanobacterial toxins (n=1; treated water, n=0; untreated water, n=1), and multiple etiologies (n=8; treated water, n=3; untreated water, n=5).

§ These include outbreaks caused by: Campylobacter (n=1), Plesiomonas (n=3), cyanobacterial toxins (n=1), and multiple etiologies (n=5).

¶ These include outbreaks caused by: Campylobacter (n=1) and multiple etiologies (n=3).

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