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Chlorine inactivation of human norovirus, murine norovirus and poliovirus in drinking water.
Lett Appl Microbiol. 2010 Jul; 51(1):119-21.LA

Abstract

AIMS

To evaluate the reduction of human norovirus (HuNoV) by chlorine disinfection under typical drinking water treatment conditions.

METHODS AND RESULTS

HuNoV, murine norovirus (MNV) and poliovirus type 1 (PV1) were inoculated into treated water before chlorination, collected from a drinking water treatment plant, and bench-scale free chlorine disinfection experiments were performed for two initial free chlorine concentrations, 0.1 and 0.5 mg l(-1). Inactivation of MNV reached more than 4 log(10) after 120 and 0.5 min contact time to chlorine at the initial free chlorine concentrations of 0.1 and 0.5 mg l(-1), respectively.

CONCLUSIONS

MNV was inactivated faster than PV1, and there was no significant difference in the viral RNA reduction rate between HuNoV and MNV. The results suggest that appropriate water treatment process with chlorination can manage the risk of HuNoV infection via drinking water supply systems.

SIGNIFICANCE AND IMPACT OF THE STUDY

The data obtained in this study would be useful for assessing or managing the risk of HuNoV infections from drinking water exposure.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Kitajima M
Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Tohya Y
No affiliation info available
Matsubara K
No affiliation info available
Haramoto E
No affiliation info available
Utagawa E
No affiliation info available
Katayama H
No affiliation info available

MeSH

AnimalsCell LineChlorineDisinfectantsDisinfectionHumansNorovirusPoliovirusTime FactorsViral LoadViral Plaque AssayVirus InactivationWater MicrobiologyWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20536708

Citation

Kitajima, M, et al. "Chlorine Inactivation of Human Norovirus, Murine Norovirus and Poliovirus in Drinking Water." Letters in Applied Microbiology, vol. 51, no. 1, 2010, pp. 119-21.
Kitajima M, Tohya Y, Matsubara K, et al. Chlorine inactivation of human norovirus, murine norovirus and poliovirus in drinking water. Lett Appl Microbiol. 2010;51(1):119-21.
Kitajima, M., Tohya, Y., Matsubara, K., Haramoto, E., Utagawa, E., & Katayama, H. (2010). Chlorine inactivation of human norovirus, murine norovirus and poliovirus in drinking water. Letters in Applied Microbiology, 51(1), 119-21. https://doi.org/10.1111/j.1472-765X.2010.02869.x
Kitajima M, et al. Chlorine Inactivation of Human Norovirus, Murine Norovirus and Poliovirus in Drinking Water. Lett Appl Microbiol. 2010;51(1):119-21. PubMed PMID: 20536708.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chlorine inactivation of human norovirus, murine norovirus and poliovirus in drinking water. AU - Kitajima,M, AU - Tohya,Y, AU - Matsubara,K, AU - Haramoto,E, AU - Utagawa,E, AU - Katayama,H, Y1 - 2010/05/14/ PY - 2010/6/12/entrez PY - 2010/6/12/pubmed PY - 2010/10/15/medline SP - 119 EP - 21 JF - Letters in applied microbiology JO - Lett Appl Microbiol VL - 51 IS - 1 N2 - AIMS: To evaluate the reduction of human norovirus (HuNoV) by chlorine disinfection under typical drinking water treatment conditions. METHODS AND RESULTS: HuNoV, murine norovirus (MNV) and poliovirus type 1 (PV1) were inoculated into treated water before chlorination, collected from a drinking water treatment plant, and bench-scale free chlorine disinfection experiments were performed for two initial free chlorine concentrations, 0.1 and 0.5 mg l(-1). Inactivation of MNV reached more than 4 log(10) after 120 and 0.5 min contact time to chlorine at the initial free chlorine concentrations of 0.1 and 0.5 mg l(-1), respectively. CONCLUSIONS: MNV was inactivated faster than PV1, and there was no significant difference in the viral RNA reduction rate between HuNoV and MNV. The results suggest that appropriate water treatment process with chlorination can manage the risk of HuNoV infection via drinking water supply systems. SIGNIFICANCE AND IMPACT OF THE STUDY: The data obtained in this study would be useful for assessing or managing the risk of HuNoV infections from drinking water exposure. SN - 1472-765X UR - https://www.unboundmedicine.com/medline/citation/20536708/Chlorine_inactivation_of_human_norovirus_murine_norovirus_and_poliovirus_in_drinking_water_ DB - PRIME DP - Unbound Medicine ER -