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A unique human rotavirus (non vaccine) G9P4 genotype infection in a child with gastroenteritis

V Mangayarkarasi1, A Prema, P Gunasekaran

  • 1Department of Pediatrics, SRM MCH and RC, Chennai, Tamil Nadu, India. mangaikumaran@yahoo.com

Indian Pediatrics
|August 14, 2012
PubMed

Insights

This study identified common Rotavirus genotypes in young children with gastroenteritis. The findings highlight the prevalence of G9P8 and G1P8, alongside non-vaccine genotypes like G9P4.

Area of Science:

  • Virology
  • Pediatric infectious diseases
  • Molecular epidemiology

Background:

  • Group A Rotaviruses (RV) are a leading cause of severe gastroenteritis in children under five worldwide.
  • Commonly important serotypes include G1-G4 and G9.
  • Understanding circulating RV genotypes is crucial for public health and vaccine strategies.

Observation:

  • 300 children under five with acute gastroenteritis were screened for RV.
  • Enzyme-linked immunosorbent assay (ELISA) detected RV group-specific VP6 antigen in 47 samples.
  • Reverse transcriptase polymerase chain reaction (RT-PCR) was used for genotyping 20 positive samples.

Findings:

  • The study identified several Rotavirus genotypes including G9P8, G1P8, G2P4, and G1P6.
  • The non-vaccine genotype G9P4 was also detected.
  • Five samples were identified as G1, with P types undetermined.

Implications:

  • The identified genotypes, including G9P4, provide valuable data for vaccine efficacy monitoring.
  • This molecular epidemiology study informs surveillance of Rotavirus strains in pediatric populations.
  • Genotyping data supports targeted public health interventions against Rotavirus gastroenteritis.

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