Waterborne Outbreak of Campylobacteriosis in Norway
Author Information
Author(s): Irena Jakopanec, Katrine Borgen, Line Vold, Helge Lund, Tore Forseth, Raisa Hannula, Karin Nygård
Primary Institution: Norwegian Institute of Public Health
Hypothesis
What was the source and extent of the campylobacteriosis outbreak in Røros, Norway?
Conclusion
The investigation confirmed a waterborne outbreak of campylobacteriosis in Røros, highlighting the need for improved safety in water distribution systems.
Supporting Evidence
- 105 cases were identified among 340 individuals, with an attack rate of 31%.
- Tap water consumption was the only exposure associated with illness.
- A dose-response relationship was observed in daily consumed glasses of tap water.
Takeaway
A lot of people got sick from drinking tap water in Røros, Norway, because the water wasn't safe. We need to make sure our water systems are better protected.
Methodology
A retrospective cohort study was conducted among customers of Røros and Holtålen waterworks, with data gathered through telephone interviews and stool sample testing.
Potential Biases
Potential bias may arise from media influence on reporting illness and exposure among control town residents.
Limitations
The exact recall period for exposures was not reported, which may affect the accuracy of the data.
Participant Demographics
The median age of participants was 44 years, with a gender distribution of 51% women.
Statistical Information
P-Value
0.004
Confidence Interval
95% CI not specified
Statistical Significance
p = 0.004
Digital Object Identifier (DOI)
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