A Comprehensive Review for the Surveillance of Human Pathogenic Microorganisms in Shellfish

Marion Desdouits; Yann Reynaud; Cécile Philippe; Françoise S. Le Guyader

A Comprehensive Review for the Surveillance of Human Pathogenic Microorganisms in Shellfish

2023

Marion Desdouits | Yann Reynaud | Cécile Philippe | Françoise S. Le Guyader

Bivalve molluscan shellfish have been consumed for centuries. Being filter feeders, they may bioaccumulate some microorganisms present in coastal water, either naturally or through the discharge of human or animal sewage. Despite regulations set up to avoid microbiological contamination in shellfish, human outbreaks still occur. After providing an overview showing their implication in disease, this review aims to highlight the diversity of the bacteria or enteric viruses detected in shellfish species, including emerging pathogens. After a critical discussion of the available methods and their limitations, we address the interest of technological developments using genomics to anticipate the emergence of pathogens. In the coming years, further research needs to be performed and methods need to be developed in order to design the future of surveillance and to help risk assessment studies, with the ultimate objective of protecting consumers and enhancing the microbial safety of bivalve molluscan shellfish as a healthy food.

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