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01.07.2019 | Original Article

Giardia lamblia assemblages A and B isolated from symptomatic and asymptomatic persons in Hamadan, west of Iran

verfasst von: Manizheh Kashinahanji, Ali Haghighi, Fares Bahrami, Mohammad Fallah, Masoud Saidijam, Mohammad Matini, Amir Hossein Maghsood

Erschienen in: Journal of Parasitic Diseases | Ausgabe 4/2019

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Abstract

Giardia is a very abundant organism bringing about diarrhoea in human beings. The focus of this analysis was the detection of Giardia lamblia assemblages in human stool specimens in Hamadan, west of Iran, as well as the association between obtained assemblages and clinical symptoms. Faecal samples of 4066 individuals admitted to the medical and health care facilities in Hamadan were inspected microscopically for the existence of Giardia cysts/trophozoites, and the clinical symptoms of the patients were recorded. The DNA of positive samples was isolated from and the nucleotide sequences of both glutamate dehydrogenase (gdh) (n = 15) and triose phosphate isomerase (tpi) (n = 8) genes were analyzed. In direct microscopy, a total of sixty-four samples (1.6%), were considered as positive for G. lamblia cysts or trophozoites. The sequence analysis showed that 18 out of 23 sequenced isolates (78.2%) were assemblage A and 5 (21.7%) were assemblage B. Clinical symptoms were observed in 44.4% and 40% of patients with assemblages A and B, respectively. Overall, the predominant assemblage A detected in the tested samples along with bioinformatics analysis suggest a potential zoonotic transmission in the region of the study. Although advanced analyses are necessary to understand the foundation and path of the infection, it seems that more sanitary regulations regarding contact with livestock and pet animals are essential.

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Titel: Giardia lamblia assemblages A and B isolated from symptomatic and asymptomatic persons in Hamadan, west of Iran
verfasst von: Manizheh Kashinahanji
Ali Haghighi
Fares Bahrami
Mohammad Fallah
Masoud Saidijam
Mohammad Matini
Amir Hossein Maghsood
Publikationsdatum: 01.07.2019
Verlag: Springer India
Erschienen in: Journal of Parasitic Diseases / Ausgabe 4/2019
Print ISSN: 0971-7196
Elektronische ISSN: 0975-0703
DOI: https://doi.org/10.1007/s12639-019-01139-x

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