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Inactivation of Helicobacter pylori by chlorination
C H Johnson1, E W Rice, D J Reasoner
1Water Supply and Water Resources Division, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, USA.
Applied and Environmental Microbiology
|December 24, 1997
Summary
Three strains of Helicobacter pylori were evaluated for chlorine resistance. Results show that free chlorine effectively inactivates these bacteria, supporting its use in drinking water disinfection.
Area of Science:
- Microbiology
- Environmental Science
- Water Treatment
Background:
- Helicobacter pylori is a significant human pathogen.
- Understanding its susceptibility to disinfectants is crucial for public health.
- Chlorination is a primary method for drinking water disinfection.
Purpose of the Study:
- To assess the resistance of Helicobacter pylori to chlorination.
- To determine the efficacy of free chlorine in inactivating H. pylori.
Main Methods:
- Exposure of three H. pylori strains to free chlorine.
- Quantification of bacterial survival post-chlorination.
Main Results:
- All three tested strains of Helicobacter pylori were readily inactivated by free chlorine.
- Chlorine disinfection proved effective against the studied H. pylori strains.
Conclusions:
- Helicobacter pylori can be effectively controlled using standard chlorination practices in drinking water treatment.
- Disinfection protocols employing free chlorine are suitable for managing H. pylori in water supplies.