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Toxins 2018, 10(3), 102; https://doi.org/10.3390/toxins10030102

Tectus niloticus (Tegulidae, Gastropod) as a Novel Vector of Ciguatera Poisoning: Clinical Characterization and Follow-Up of a Mass Poisoning Event in Nuku Hiva Island (French Polynesia)

1
Laboratory of Toxic Microalgae, Institut Louis Malardé (ILM)—UMR 241-EIO, P.O. box 30, 98713 Papeete, Tahiti, French Polynesia
2
Poison Control Centre and National Toxicology Information Centre—Toxicology Unit, Istituti Clinici Scientifici Maugeri, IRCCS Maugeri Hospital and University of Pavia, 27100 Pavia, Italy
3
Subacute Care Unit, Istituti Clinici Scientifici Maugeri, IRCCS Maugeri Hospital, 27100 Pavia, Italy
4
Institut de Recherche pour le Développement (IRD)—UMR 241-EIO, P.O. box 529, 98713 Papeete, Tahiti, French Polynesia
*
Author to whom correspondence should be addressed.
Received: 15 January 2018 / Revised: 19 February 2018 / Accepted: 23 February 2018 / Published: 28 February 2018
(This article belongs to the Special Issue Public Health Outreach to Prevention of Aquatic Toxin Exposure)
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Abstract

Ciguatera fish poisoning (CFP) is the most prevalent non-bacterial food-borne form of poisoning in French Polynesia, which results from the consumption of coral reef fish naturally contaminated with ciguatoxins produced by dinoflagellates in the genus Gambierdiscus. Since the early 2000s, this French territory has also witnessed the emergence of atypical forms of ciguatera, known as ciguatera shellfish poisoning (CSP), associated with the consumption of marine invertebrates. In June 2014, nine tourists simultaneously developed a major and persistent poisoning syndrome following the consumption of the gastropod Tectus niloticus collected in Anaho, a secluded bay of Nuku Hiva Island (Marquesas Archipelago, French Polynesia). The unusual nature and severity of this event prompted a multidisciplinary investigation in order to characterize the etiology and document the short/long-term health consequences of this mass-poisoning event. This paper presents the results of clinical investigations based on hospital medical records, medical follow-up conducted six and 20 months post-poisoning, including a case description. This study is the first to describe the medical signature of T. niloticus poisoning in French Polynesia and contributed to alerting local authorities about the potential health hazards associated with the consumption of this gastropod, which is highly prized by local communities in Pacific island countries and territories. View Full-Text
Keywords: ciguatera poisoning; Tectus niloticus; ciguatoxins; health hazards; clinical follow-up; neurological exploration; French Polynesia ciguatera poisoning; Tectus niloticus; ciguatoxins; health hazards; clinical follow-up; neurological exploration; French Polynesia
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Gatti, C.M.; Lonati, D.; Darius, H.T.; Zancan, A.; Roué, M.; Schicchi, A.; Locatelli, C.A.; Chinain, M. Tectus niloticus (Tegulidae, Gastropod) as a Novel Vector of Ciguatera Poisoning: Clinical Characterization and Follow-Up of a Mass Poisoning Event in Nuku Hiva Island (French Polynesia). Toxins 2018, 10, 102.

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