Detection and characterization of rotavirus G and P types from children with acute gastroenteritis in Qom, central Iran
Gastroenterology and Hepatology from Bed to Bench,
Vol. 13 No. Supplement 1 (2020),
9 December 2020
,
Page S128-S133
https://doi.org/10.22037/ghfbb.v13i1.2233
Abstract
Aim: The aim of the study is to estimate the burden of Rotavirus gastroenteritis as well as predominant genotypes of Rotavirus among children less than 5 years of age referring to Pediatric University Hospital in Qom, Iran.
Background: Gastroenteritis is the fourth most common cause of death and accounts for 16% of all deaths in children <5 years of age worldwide.
Methods: During two years, 130 patients referring to a pediatric hospital were enrolled in this study. After RNA extraction, Rotaviruses were detected by the VP6 gene. Then, G-typing (G1, G2, G3, G4, G8, G9, and G12) and P-typing (P4, P6, and P8) were performed using RT-PCR and specific primers.
Results: The results of the PCR revealed that from a total of 130 patients, 22 cases (16.9%) showed positive VP6 by RT-PCR. G1 was mostly the predominant serotype (27%), accounting for 22% of all VP7-positive isolates, followed by G9 (18%),G2 (9%), G3 (9%), and G4 (9%). None of the strains revealed the presence of G8 genotype (0%), and 5 specimens (23%) were non-typable.
The frequency of P typing was P8 (50%), P6 (23%), P4 (14%), and 3 samples were P-non-typable (13%), respectively. The dominant G-P combination was G1 [8] (32%).
Conclusion: Such studies based on typing methods assists in the Rotavirus vaccine introduction by policymakers and design of new effective vaccines.
Keywords: Diarrhea, Rotavirus, Genotyping, Acute gastroenteritis, Vaccine, Iran.
(Please cite as: Shams S, Mousavi Nasab SD, Heydari H, Tafaroji J, Ahmadi NA, Shams Afzali E. Detection and Characterization of Rotavirus G and P Types from children with acute gastroenteritis in Qom, central Iran. Gastroenterol Hepatol Bed Bench 2020;13(Suppl.1):S128-S133).
- Diarrhea, Rotavirus, Genotyping, acute gastroenteritis, vaccine, Iran
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References
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