Assessment of the effectiveness of low-pressure UV light for inactivation of Helicobacter pylori

Article Abstract:

Three strains of Helicobacter pylori are exposed to ultraviolet (UV) light from a low-pressure source to determine log inactivation versus applied fluence. The results have shown that H. pylori is readily inactivated at UV fluences typically used in water treatment regimens and greater than 4-[log.sub.10] inactivation is demonstrated on all three strains at fluences of less than 8 mJ [cm.sup.2-].

Usage, Ultraviolet radiation, Gene silencing

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Survival of Helicobacter pylori in a natural freshwater environment

Article Abstract:

The ability of Helicobacter pylori to enter the viable but nonculturable (VNBC) state in both the laboratory and a natural freshwater environment is investigated. The results suggest that H. Pylori persists in laboratory cultures and the environment in the VNBC state and that cells in this state represent a public health hazard.

Microbiological research

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Adherence of Helicobacter pylori to abiotic surfaces is influenced by serum

Article Abstract:

Helicobacter pylori bacteria cultured in a chemically defined medium without serum has adhered to a variety of abiotic surfaces. Serum has inhibited adherence and initial attachment is shown to be protein mediated, but other molecules are also responsible for more permanent attachment.

Genetic aspects, Serum, Blood serum, Cell adhesion

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