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Survival of Campylobacter jejuni in mineral bottled water according to difference in mineral content: Application of the Weibull model

Abstract : The aim of the study was to examine the hypothesis proposed by Evans et al. [2003. Hazards of healthy living: bottled water and salad vegetables as risk factors for Campylobacter infection. Emerg. Infect. Dis. 9(10), 1219–1225] that mineral bottled water accidentally contaminated by Campylobacter jejuni would represent a risk factor for Campylobacter infection. Culturability of C. jejuni cells inoculated in low- and high-mineral bottled water during storage at 4 1C in the dark was performed by surface plating and modelled using theWeibull model. The loss of C. jejuni culturability observed in all conditions tested was shown to be dependent on strain, preculture condition and water composition. Following inoculation of C. jejuni, the rapid loss of culturability was not correlated to complete cell death as the passage into embryonated eggs enabled recovery of cells from the viable but non-culturable state. In conclusion, the sanitary risk associated with contaminated bottled water cannot be excluded although it is presumably low. Culture conditions, strain and water type must be taken into account in the evaluation of the risk factors as they influence significantly Campylobacter survival in water.
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Sandrine Guillou, Ivan Leguérinel, N. Garrec, M. A. Renard, Jean-Michel Cappelier, et al.. Survival of Campylobacter jejuni in mineral bottled water according to difference in mineral content: Application of the Weibull model. Water Research, IWA Publishing, 2008, 42 (8-9), pp.2213-2219. ⟨10.1016/j.watres.2007.11.035⟩. ⟨hal-00552974⟩

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