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Human diphyllobothriasis in Argentina: assessing the epidemiological significance from historical records and reports of new cases
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Human diphyllobothriasis in Argentina: assessing the epidemiological significance from historical records and reports of new cases
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Journal Article
Human diphyllobothriasis in Argentina: assessing the epidemiological significance from historical records and reports of new cases
2024
Overview
Between 1898 and 1940, eight human cases of diphyllobothriasis were reported in Argentina, always in recently arrived European immigrants. In 1982, the first autochthonous case was detected, and since then, 33 other autochthonous cases have been reported, totaling 42 cases of human diphyllobothriasis in Argentina before the present study. Our aim is to update the information on diphyllobothriasis in Argentina by identifying specimens from new cases using morphometrical and/or molecular methods. We also aim to assess the epidemiological relevance of this food-borne disease in the country. Anamnestic data were obtained from patients or professionals, along with 26 worms identified using morphometrical (21 samples) and molecular techniques (5 samples). All the patients acquired the infection by consuming freshwater salmonids caught in Andean lakes in Northern Patagonia. Morphometrics and DNA markers of worms were compatible with
Dibothriocephalus latus
. In total, 68 human cases have been detected in Argentina, 60 of which were autochthonous. The human population living North-western Patagonia, whose lakes are inhabited by salmonids, is increasing. Similarly, the number of other definitive hosts for
Dibothriocephalus dendriticus
(gulls) and for
D. latus
(dogs) is also increasing. In addition, salmonid fishing and the habit of consuming home-prepared raw fish dishes are becoming widespread. Therefore, it is to be expected that diphyllobothriasis in Argentina will increase further.
Publisher
Springer Berlin Heidelberg,Springer,Springer Nature B.V
Subject
/ Adult
/ Aged
/ Animals
/ Biomedical and Life Sciences
/ Diarrhea
/ Diphyllobothriasis - epidemiology
/ Diphyllobothriasis - parasitology
/ Diphyllobothrium - classification
/ Diphyllobothrium - isolation & purification
/ DNA
/ Female
/ Females
/ Fish
/ Fishes
/ Fishing
/ Food
/ Foodborne Diseases - epidemiology
/ Foodborne Diseases - parasitology
/ Humans
/ Male
/ Meetings
/ raw fish
