ETD

Digital archive of theses discussed at the University of Pisa

 

Thesis etd-06272016-215431


Thesis type
Tesi di specializzazione (3 anni)
Author
COSSU, MARIA ROSA
URN
etd-06272016-215431
Thesis title
Ricerca di Vibrio parahaemolyticus in molluschi bivalvi vivi allevati nella Regione Sardegna negli anni 2014 e 2015 e contributo alla valutazione del rischio
Department
SCIENZE VETERINARIE
Course of study
ISPEZIONE DEGLI ALIMENTI DI ORIGINE ANIMALE
Supervisors
relatore Dott.ssa Pedonese, Francesca
relatore Dott. Virgilio, Sebastiano
Keywords
  • Vibrio parahaemolyticus
  • molluschi bivalvi vivi
  • valutazione del rischio
Graduation session start date
20/07/2016
Availability
Full
Summary
Mollusk samples collected from Sardinia ASLs were analyzed by IZS of Sassari. Samples were oysters (Crassostrea gigas, Ostrea edulis), clams (Tapes philippinarum and decussatus) and mussels (Mytilus galloprovincialis and edulis). Samples were analyzed for V. parahaemolyticus by the ISO/TS 21872-1:2007. Strains were tested by PCR for the presence of V. parahaemolyticus species-specific genes (toxR) and to detect the virulence genes (tdh and trh). V. parahaemolyticus is responsible of emerging public health problems. Reg. CE 2073/2005 does not fix specific criteria, however, recommends the application of good hygienic practices. V.parahaemolyticus prevalence is low. However, such results confirm that it is necessary to acquire more knowledge about V. parahaemolyticus in Sardinia marine seawater. It would be appropriate to include this microorganism in the surveillance systems for gastrointestinal diseases and in monitoring programs in mollusk collection areas.
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