Chlorine Inactivation of Human Norovirus, Murine Norovirus and Poliovirus in Drinking Water

Overview

Journal Lett Appl Microbiol

Publisher Oxford University Press

Specialty Microbiology

Date 2010 Jun 12

PMID 20536708

Citations 22

Authors

M Kitajima

Y Tohya

K Matsubara

E Haramoto

E Utagawa

H Katayama

Affiliations

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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.

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Cuff J, Dighe S, Watson S, Badell-Grau R, Weightman A, Jones D JMIR Infodemiology. 2023; 3:e43891.

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Surveillance of Adenovirus and Norovirus Contaminants in the Water and Shellfish of Major Oyster Breeding Farms and Fishing Ports in Taiwan.

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Hayashi K, Komatsu S, Kuno H, Asai S, Matsuura I, Kudkyal V Mar Drugs. 2022; 20(2).

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A Waterborne Gastroenteritis Outbreak Caused by a GII Norovirus in a Holiday Camp in Catalonia (Spain), 2017.

Carol M, Guadalupe-Fernandez V, Rius C, Soldevila N, Razquin E, Guix S Viruses. 2021; 13(9).

PMID: 34578373 PMC: 8473012. DOI: 10.3390/v13091792.