期刊名称：Annals of Agricultural and Environmental Medicine
印刷版ISSN：1232-1966
电子版ISSN：1898-2263
出版年度：2019
卷号：26
期号：3
页码：1-6
DOI：10.26444/aaem/102762
出版社：Institute of Agricultural Medicine in Lublin
摘要：Introduction. Radix auricularia (Linnaeus, 1758) is a freshwater gastropod belongs to the Lymnaeidae (pond snails) family
which act as intermediate hosts or vectors of various parasitic flukes. No study has yet been undertaken on the prevalence
of Petasiger spp. infection in R. auricularia. Species of Petasiger (Dietz, 1909) are a cosmopolitan parasite that utilize snails
as the first intermediate host, with vertebrates like amphibians larvae and fish as the second intermediate host, followed
by fish-eating birds. The current paper is considered to be the first report of Petasiger exaeretus parasitized R. auricularia in
Iraq, which is supported with molecular and phylogenetic analysis.
Materials and method. Freshwater snails R. auricularia were collected during October 2016 – September 2017 from different
locations of Sufaia village on the Greater Zab river, Erbil province, Iraq.
Results. A total of 307 freshwater snails R. auricularia were collected, only five of them were infected with a prevalence of
Petasiger exaeretus (1.62%).
Conclusions. The current study agrees with the opinion of Selbach, Soldánová (26), which suggested the possibility of a much
higher morphological diversity within Petasiger species, based on the number of described cercariae, compared with adult
forms.It is clear that P. phalacrocoracis specimens have often been erroneously designated as P. exaeretus by many authors
(Našincová et al., 1994). Certain morphological similarities and dissimilarities between P. exaeretus and P. phalacrocoracis
can be detected: the pear-shaped body resembles P. exaeretus, whereas, P. phalacrocoracis have an elongated body.
关键词：cancer; prevention; breast self;examination; nurses
