Survival of Helicobacter pylori in milk and tap water

J Gastroenterol Hepatol. 1998 Nov;13(11):1096-8. doi: 10.1111/j.1440-1746.1998.tb00582.x.


The survival capacity of Helicobacter pylori in artificially contaminated milk and tap water was investigated in the study. Helicobacter pylori could survive for up to 10 days in milk at 4 degrees C storage but only 4 days in tap water with a steady decrease of colony forming units. However, electron microscopy clearly showed that the non-culturable coccoid form was present in tap water which had been kept at 4 degrees C for 7 days. It is concluded that H. pylori may survive in tap water as well as in milk, with the implication that they may, thereby, act as a vehicle of transmission.

MeSH terms

  • Animals
  • Helicobacter pylori / growth & development*
  • Humans
  • Male
  • Microscopy, Electron
  • Middle Aged
  • Milk / microbiology*
  • Temperature
  • Water Microbiology*