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Lett Appl Microbiol. 2010 Oct;51(4):443-9. doi: 10.1111/j.1472-765X.2010.02917.x. Epub 2010 Aug 27.

Occurrence of Vibrio vulnificus in mussel farms from the Varano lagoon environment.

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1
Department of Food Science, Foggia University, Foggia, Italy. l.beneduce@unifg.it

Abstract

AIMS:

Monitoring the occurrence of the human pathogen Vibrio vulnificus in a mussel farm located in the lagoon of Varano (Italy).

METHODS AND RESULTS:

A total of 72 samples of mussel, water and sediment, collected from two locations of Varano lagoon in the Gargano peninsula, during a 7-month survey, were analysed. Isolation and PCR characterization of six V. vulnificus environmental genotype strains revealed that this pathogen was isolated when with T was above 22 °C and salinity ranged between 22.7 and 26.4‰. No significant correlation of the occurrence of V. vulnificus with water pH or salinity was observed. Moreover, 8% of mussel samples were found to be contaminated by V. vulnificus. All of that positive mussel samples originated from the same sampling station.

CONCLUSION:

It is suggested that warmer season are risky to eat raw or undercooked bivalve molluscs in the local area.

SIGNIFICANCE AND IMPACT OF THE STUDY:

To increase knowledge about environmental conditions that may affect the occurrence of waterborne pathogen Vibrio vulnificus in seafood.

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