Prevalence of heterophyiosis in Tilapia fish and humans in Northern Egypt.

Parasitology Research
Salem M A LobnaHany M Elsheikha

Abstract

A total of 100 Tilapia fish samples were collected from brackish water (n = 50) and fresh water (n = 50) resources, Northern Egypt, and examined for heterophyid encysted metacercariae (EMC) during the period from August 2007 to July 2008. The overall prevalence of infection was 32%; 22% for brackish water fish and 42% for fresh water fish. Significant differences in parasite occurrence among body regions were found, with muscles of the tail and caudal third being highly affected (93.4%) followed by middle third (84.3%) and anterior third (75%), while the head region had the lowest infection (21.9%). The prevalence was highest in summer season (46.4%) followed by spring (37.5%) and autumn (27.3%), and was lowest in winter (15.4%). The prevalence of infection decreased as fish size increased. Adult heterophyids, Heterophyes heterophyes, Heterophyes aequalis, Pygidiopsis genata, Haplorchis yokogawai, and Ascocotyle (Phagicola) ascolonga were recovered from EMC-feed puppies. Eggs of heterophyid type were detected in 10 (13.3%) out of 75 human stool specimens from local residents. An association exists between being a female (odd ratio [OR] 1.59 and 95% confidence interval [CI] 0.42-6.04), a fisherman (OR 1.39 [95% CI 0.26-7.48]), a...Continue Reading

References

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Citations

May 9, 2014·Tropical Medicine and Health·Ahmed I Youssef, Shoji Uga
Jan 31, 2014·Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række·Kurt HanevikKetil Kvanum Sund
Mar 23, 2021·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Mahmoud Abdelnaby El-SeifyNaema Mohammed Marey
May 2, 2021·Acta Tropica·Kharleezelle J MoendegNancy O Cacayorin

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