This study highlights the fact that, in the event of dual contamination of a bottled natural mineral water (Campylobacter and biodegradable organic matter), the pathogen could survive (and even grow) for a relatively long time, especially at low temperature and in spite of the presence of oxygen. The study showed that survival of Camp. jejuni in natural mineral water was better at 4 C than at 25 C, and the presence of organic matter led to a deceleration in the loss of cultivability and to the multiplication of Camp. jejuni in natural mineral water. Journal of Applied Microbiology 2007;103:280-8.