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Frequency and phylogeny of norovirus in diarrheic children in Istanbul, Turkey
- Source :
- Journal of Clinical Virology. 51:160-164
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- Background Norovirus (NoV) is recognised as one of the most common causes of foodborne infections. Contaminated shellfish, food, water and hospitals are well documented sources of the virus. Objective NoV in diarrheic children has not previously been investigated in Istanbul, Turkey, hence the aim of this study was to detect and investigate the frequency and phylogeny of human NoV genogroups I and II in children with acute gastroenteritis. Study design 238 stool samples were collected from diarrheic children from 2 hospitals (Cerrahpasa Medical School and Haseki) in Istanbul and analysed by ELISA, RT-PCR and real-time RT-PCR using both SYBR Green and probe-based assays for human NoV. Primers targeting the RNA-polymerase gene were used for RT-PCR to allow DNA sequencing of Turkish NoV strains and phylogenetic analysis to be performed. Results NoV GII was detected in 36 (15.1%) of 238 samples by SYBR Green real-time RT-PCR, 10.9% by a probe-based real-time RT-PCR and 10.5% by ELISA (Ridascreen). Genogroup II (GII) the Turkish NoVs clustered with including GII4 (72.2%), GII16 (5.5%), GIIb (16.7%) and GIIe (5.5%). Two variants of GII4 (GII4-2006b and GII4-2008), GII16 and recombinant noroviruses (GIIb and GIIe) were identified. Conclusion This study shows a high frequency and genetic diversity of NoV GII infections in children with acute gastroenteritis in Istanbul, Turkey.
- Subjects :
- Diarrhea
Male
Adolescent
Genotype
Turkey
viruses
Enzyme-Linked Immunosorbent Assay
Biology
medicine.disease_cause
Feces
fluids and secretions
stomatognathic system
Phylogenetics
Virology
Prevalence
medicine
Humans
Genetic variability
Child
Phylogeny
Caliciviridae Infections
Molecular epidemiology
Reverse Transcriptase Polymerase Chain Reaction
Norovirus
Istanbul turkey
Genetic Variation
Infant
virus diseases
biology.organism_classification
Caliciviridae
Gastroenteritis
Infectious Diseases
Child, Preschool
RNA, Viral
Female
medicine.symptom
Subjects
Details
- ISSN :
- 13866532
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Journal of Clinical Virology
- Accession number :
- edsair.doi.dedup.....51b58235ba11115e5669c0545265341f