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Published on: July 22, 2012
Rotavirus Infection in Children Suffering from Diarrhea in Patna, Bihar Region, India: A Hospital-Based Study
Neetesh Jindal1, Ashish Kumar1,2, Ashiq Hussain Bhat3
1Department of Virology, ICMR-Rajendra Memorial Research Institute of Medical Sciences, Patna, India.
Insights
Rotavirus (RV) infection prevalence in Bihar, India, was 10%, with the highest rates in children aged 0-11 years. Genetic analysis revealed distinct regional RV strains, underscoring the need for targeted vaccination and surveillance.
Area of Science:
- Medical Microbiology
- Virology
- Epidemiology
Background:
- Rotavirus (RV) is a major cause of severe gastroenteritis in young children globally.
- Limited data exists on RV prevalence and genetic diversity in Bihar, India.
Purpose of the Study:
- To investigate the prevalence and molecular/epidemiological patterns of RV infections in Bihar.
- To assess the genetic diversity of RV strains in the region.
Main Methods:
- Retrospective analysis of 1,820 stool samples from suspected RV cases.
- Enzyme immunoassays for antigen detection, confirmed by real-time PCR (VP4, VP6, VP7 genes).
- Phylogenetic analysis for genetic diversity assessment.
Main Results:
- A 10% RV positivity rate was observed, with 5% equivocal results.
- Highest prevalence in the 6-11 years age group (72 cases), followed by 0-5 years (62 cases).
- Phylogenetic analysis identified distinct regional RV clusters and genetic variability compared to other Indian regions.
Conclusions:
- This study provides crucial baseline data on RV prevalence and genetic diversity in Bihar.
- Highlights the need for vaccination and enhanced surveillance, especially for at-risk young children.
- Observed genetic diversity emphasizes the importance of continuous nationwide RV surveillance.
Abstract:
Rotavirus (RV) is a leading cause of severe gastroenteritis in infants and young children, often resulting in dehydration and hospitalization. Although global data on RV is well-documented, there is limited information on its prevalence and genetic diversity in Bihar, India. This study aimed to investigate the prevalence of RV infections in the patient, from January 2021 to June 2024, and assess the associated molecular and epidemiological patterns. In this retrospective study conducted at the Rajendra Memorial Research Institute of Medical Sciences, Patna, 1,820 stool samples from patients suspected of RV infection were collected. Enzyme immunoassays were used to detect RV antigens, and positive samples were confirmed by real-time polymerase chain reaction targeting the VP4, VP6, and VP7 genes. Phylogenetic analysis was performed to examine genetic diversity. Results showed a 10% positivity rate for RV, with 5% showing equivocal results. The highest prevalence was in the 6-11 years age group (72 positive cases), followed by the 0-5 years group (62 positive cases). Prevalence decreased in older age groups, suggesting immunity through natural infection or vaccination. Phylogenetic analysis revealed distinct regional clusters and genetic variability between strains from Bihar and other parts of India, such as New Delhi and Kolkata. This study provides valuable baseline data on RV prevalence and genetic diversity in Bihar, emphasizing the need for vaccination and surveillance, particularly for younger children at higher risk. The observed genetic diversity suggests regional variations, highlighting the importance of continuous surveillance across India.
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