Prevalence of Diphyllobothrium latum (Cestoda: Diphyllobothriidae) plerocercoids in fish species from four Italian lakes and risk for the consumers
| Autor: | Monica Caffara, T. Scanzio, Marino Prearo, Andrea Gustinelli, Marzia Righetti, Marialetizia Fioravanti, Vasco Menconi, Annibale Raglio |
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| Přispěvatelé: | Gustinelli, Andrea, Menconi, Vasco, Prearo, Marino, Caffara, Monica, Righetti, Marzia, Scanzio, Tommaso, Raglio, Annibale, Fioravanti, Maria Letizia |
| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Diphyllobothrium latum 030231 tropical medicine Microbiology 03 medical and health sciences Fish Diseases 0302 clinical medicine food Coregonus lavaretus Diphyllobothrium Raw Foods Plerocercoid medicine Prevalence Animals Humans Fish-borne zoonosi Safety Risk Reliability and Quality Esox Pike computer.programming_language Perch food.dish biology Fishes General Medicine 030108 mycology & parasitology DNA Protozoan biology.organism_classification medicine.disease Fishery Gadiformes Lakes Diphyllobothriasis Italy Perches Larva Freshwater fish Esocidae France computer Cestode larvae Salmonidae Switzerland Food Science |
| Zdroj: | International journal of food microbiology. 235 |
| ISSN: | 1879-3460 |
| Popis: | In recent years there has been a re-emergence of diphyllobothriasis by Diphyllobothrium latum (Cestoda: Diphyllobothriidae) in Italy, France and Switzerland, where in the past this fish-borne zoonosis was widespread and then virtually disappeared. A change in eating habits such as the consumption of raw/undercooked freshwater fish, has led to an increased risk for consumers of ingesting infective larvae of D. latum. A survey on the factors responsible for the re-emergence of human diphyllobothriasis in Italy was carried out from March 2013 to December 2014. The aim of this study was to assess the diffusion of D. latum plerocercoids in the fish populations of the sub-alpine lakes of Maggiore, Como, Iseo and Garda, updating the scarce historical data and assessing a preliminary “risk level” of the lacustrine environments and fish species under investigation. A total of 2228 fish belonging to 5 species, 690 from Lake Maggiore, 500 from Lake Como, 655 from Lake Iseo and 383 from Lake Garda were submitted to parasitological examination. The presence of D. latum plerocercoid larvae was detected in 6.6%, 25.4% and 7.6% of perch (Perca fluviatilis) from Lakes Maggiore, Como and Iseo respectively. The parasite was also present in pike (Esox lucius) with prevalence values ranging from 71.4 to 84.2% and in 3.6–3.8% of burbot (Lota lota) from Lakes Iseo and Como. Fish from Lake Garda were negative as well as sampled whitefish (Coregonus lavaretus) and shad (Alosa fallax lacustris). The results of this survey showed a widespread presence of D. latum plerocercoid larvae in Maggiore, Como and Iseo fish populations. Urban fecal contamination of water is still a key issue to be resolved, together with the improvement of communication with consumers regarding the best dietary habits and the most effective processes of parasite inactivation, required for the consumption of raw/undercooked fish caught in high-risk areas. |
| Databáze: | OpenAIRE |
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