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A note on the survival of Legionella pneumophila in stagnant tap water
The Journal of Applied Bacteriology
|October 1, 1985
Abstract:
Tap water, from an experimental hot water system, containing a known virulent strain of Legionella pneumophila was stored in screw-capped bottles for 14 months. Viable counts showed survival of L. pneumophila and at least three other bacterial species. This reinforces the view that L. pneumophila can survive in stagnant water for relatively long periods of time.
Insights
Legionella pneumophila can survive in stored tap water for over a year. This study demonstrates the long-term viability of this bacterium and other species in stagnant water conditions.
Area of Science:
- Microbiology
- Environmental Health
Background:
- Legionella pneumophila is a bacterium known to cause Legionnaires' disease.
- Understanding its survival in water systems is crucial for public health.
Purpose of the Study:
- To investigate the long-term survival of Legionella pneumophila in stored tap water.
Main Methods:
- Tap water inoculated with Legionella pneumophila was stored in screw-capped bottles for 14 months.
- Viable bacterial counts were performed periodically.
Main Results:
- Legionella pneumophila remained viable throughout the 14-month study period.
- At least three other bacterial species also survived.
Conclusions:
- Legionella pneumophila can persist in stagnant water for extended durations.
- This highlights potential risks in water systems where stagnation occurs.