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Springerplus. 2016 Apr 14;5:464. doi: 10.1186/s40064-016-2115-7. eCollection 2016.

Incidence and prevalence of Vibrio parahaemolyticus in seafood: a systematic review and meta-analysis.

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Ecology and Biodiversity Centre, Institute for Marine and Antarctic Studies, University of Tasmania, Launceston, Australia.


Vibrio parahaemolyticus is an important seafood borne human pathogen worldwide due to it occurrence, prevalence and ability to cause gastrointestinal infections. This current study aim at investigating the incidence and prevalence of V. parahaemolyticus in seafood using systematic review-meta-analysis by exploring heterogeneity among primary studies. A comprehensive systematic review and meta-analysis of peer reviewed primary studies reported between 2003 and 2015 for the occurrence and prevalence of V. parahaemolyticus in seafood was conducted using "isolation", "detection", "prevalence", "incidence", "occurrence" or "enumeration" and V. parahaemolyticus as search algorithms in Web of Science (Science Direct) and ProQuest of electronic bibliographic databases. Data extracted from the primary studies were then analyzed with fixed effect meta-analysis model for effect rate to explore heterogeneity between the primary studies. Publication bias was evaluated using funnel plot. A total of 10,819 articles were retrieved from the data bases of which 48 studies met inclusion criteria. V. parahaemolyticus could only be isolated from 2761 (47.5 %) samples of 5811 seafood investigated. The result of this study shows that incidence of V. parahaemolyticus was more prevalent in oysters with overall prevalence rate of 63.4 % (95 % CI 0.592-0.674) than other seafood. Overall prevalence rate of clams was 52.9 % (95 % CI 0.490-0.568); fish 51.0 % (95 % CI 0.476-0.544); shrimps 48.3 % (95 % CI 0.454-0.512) and mussels, scallop and periwinkle: 28.0 % (95 % CI 0.255-0.307). High heterogeneity (p value <0.001; I (2) = 95.291) was observed mussel compared to oysters (I (2) = 91.024). It could be observed from this study that oysters harbor V. parahaemolyticus based on the prevalence rate than other seafood investigated. The occurrence and prevalence of V. parahaemolyticus is of public health importance, hence, more studies involving seafood such as mussels need to be investigated.


Prevalence; Reservoir; Seafood safety and quality; Shellfish; V. parahaemolyticus

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