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Molecular and epidemiological characterization of Giardia Intestinalis assemblages detected in Djelfa, Algeria
Molecular and epidemiological characterization of Giardia Intestinalis assemblages detected in Djelfa, Algeria Title
Nadjat Rebih, Saad Boutaiba, Ghalia Aboualchamat, Karim Souttou, Ahcen Hakem, Samar Al Nahhas Authors
Journal of Parasitic Diseases  Source title
 0971-7196  ISSN 
Q4 Q 
 https://doi.org/10.1007/s12639-020-01206-8 link
Giardia intestinalis is a flagellated protozoan that lives and proliferates in the small intestine of the host causing giardiasis. The route of transmission is the fecal–oral route, either directly or indirectly. Limited genetic information on G. intestinalis is known in Algeria. This study aimed to estimate the prevalence of G. intestinalis assemblages in the city of Djelfa. A total of 355 fecal samples were collected from symptomatic and asymptomatic school children aged ranged between 6 and 11 years old. Genotyping was done to the Giardia positive samples (n = 30) targeting the betagiardin gene by applying PCR/RFLP assay. Our data showed that most of the cases were asymptomatic (56.7%). Co-infection with other intestinal parasites was found in 16.6% of cases. We obtained 28/30 positive PCR products while two samples only showed falsenegative results, and only 20 samples have shown strong PCR products suitable for RFLP analysis. Assemblage A (70%) was more prevalent than assemblage B (30%) and was more expressed by signs than assemblage B. Moreover, only assemblage A was associated with close contacts with domestic animals and birds. In conclusion, this study gave the first molecular data on G. intestinalis isolates in the city of Djelfa. Further expanded studies using more genes and covering other cities in Algeria are mostly needed.
 Abstract


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