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Corvina on canari islands9/23/2023 ![]() These clinical observations and laboratory data were collected from a prospective questionnaire filled in by physicians at the patients' first visits. The 5 family members exhibited a combination of gastrointestinal (diarrhea, nausea/vomiting, metallic taste ), cardiologic (heart rhythm disturbances ), systemic (fatigue, itching, dizziness (1 person]), and neurologic manifestations (myalgia, peripheral paresthesia, perioral numbness, and reversal of hot and cold sensations, which is pathognomonic of ciguatera poisoning). The 5 family members sought treatment at the emergency room of Hospital de Fuerteventura and the Outpatient Clinic of Infectious Diseases and Tropical Medicine Service of Hospital Insular de Las Palmas. Within a few days, one of the fishermen and 4 family members consumed some fish, and neurologic and gastrointestinal symptoms developed within 30 minutes to 28 hours. The fishermen filleted the fish and stored fillets in a household freezer. In January 2004, 2 fishermen captured a 26-kg amberjack (local name: Medregal Negro scientific name: Seriola Rivoliana) while scuba diving along the coast of the Canary Islands, Spain. The most commonly implicated fish are barracuda, red snapper, grouper, amberjack, sea bass, surgeonfish, and moray (eel) ( 2, 3). More than 425 species of fish are associated with ciguatera poisoning in humans. Larger marine carnivores eat contaminated fish and concentrate ciguatoxins ( 1, 2). Herbivorous fish species accumulate toxins in their musculature, liver, and viscera after ingesting dinoflagellates. These toxins are transmitted by dinoflagellates of the species Gambierdiscus toxicus, which lives adhered to damaged coral reefs in tropical seas ( 2). The causative toxins of its clinical manifestations are ciguatoxins ( 7). ![]() and 5.Ĭiguatera fish poisoning is a clinical syndrome caused by eating contaminated fish ( 1). ![]() Gray indicates coral reef regions located between 35° north and 35° south latitudes brown indicates disease-endemic areas of ciguatera red circle indicates Canary Islands (latitude 28☀6´ north, longitude 15☂4´ west. ![]()
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