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Cryptosporidium spp. Contamination in Perna perna Mussels Destined for Human Consumption in Southeastern Rio de
A L Santos1, L T F de Oliveira2, A L A Souza3
1Laboratório de Bioquímica Experimental e Computacional de Fármacos - IOC FIOCRUZ, Rio de Janeiro, RJ, Brazil. antonia@ioc.fiocruz.br.
Bulletin of Environmental Contamination and Toxicology
|November 29, 2017
Summary
Cryptosporidium oocysts were found in Perna perna mussels and surrounding seawater in Brazil, indicating contamination risks. Further molecular studies and monitoring are recommended for public health safety.
Area of Science:
- Environmental microbiology
- Food safety
- Parasitology
Background:
- Cryptosporidium spp. is a significant pathogen.
- Bivalve mollusks can act as reservoirs for pathogens.
- Mussels are commonly consumed as food.
Purpose of the Study:
- To determine the presence of Cryptosporidium oocysts in Perna perna mussels and seawater.
- To assess contamination in a mussel farm in Southeastern Brazil.
Main Methods:
- Microscopic examination of mussel tissues (gills, GI tracts) and seawater.
- Enzyme-linked immunosorbent assay (ELISA) for oocyst confirmation.
Main Results:
- Cryptosporidium oocysts were detected in mussel gills, GI tracts, and seawater.
- Oocysts were more prevalent in female mussels (10-11%) than males (5-8.9%).
- Higher oocyst concentrations were found in mussel GI tracts compared to gills and water.
Conclusions:
- The study area shows apparent Cryptosporidium contamination, posing public health risks.
- Molecular investigations are needed to identify specific Cryptosporidium species.
- Monitoring of mussels intended for human consumption is crucial.
