Related Experiment Video
Updated: May 23, 2026

Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
Published on: January 28, 2019
Severity of rotavirus gastroenteritis in Indian children requiring hospitalization
Thuppal V Sowmyanarayanan1, Sasirekha Ramani, Rajiv Sarkar
1Department of Gastrointestinal Sciences, Christian Medical College, Vellore, India.
Insights
Two rotavirus gastroenteritis scoring systems, Clark
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Rotavirus gastroenteritis poses a significant health burden, particularly in developing nations.
- The development of rotavirus vaccines necessitates standardized methods for assessing disease severity.
- Existing severity scoring systems may not consistently categorize disease intensity.
Purpose of the Study:
- To compare the Vesikari and Clark scoring systems for rotavirus gastroenteritis severity assessment.
- To evaluate the suitability of current scoring systems for vaccine efficacy trials and surveillance.
Main Methods:
- Enzyme immunoassay and hemi nested multiplex RT-PCR were used to detect rotavirus in stool samples from 1001 children.
- Clinical data for gastroenteritis assessment was collected from 934 children.
- The Vesikari and Clark scoring systems were applied to assess disease severity.
Main Results:
- Rotavirus was detected in 35.4% of hospitalized children.
- The Vesikari and Clark scores showed moderate correlation but significant differences in classifying severe disease.
- Vesikari scoring categorized 66.1% as severe, while Clark scoring identified only 1.6% as severe.
Conclusions:
- Significant discrepancies exist between the Vesikari and Clark scoring systems in defining severe rotavirus gastroenteritis.
- A standardized and robust scoring system is crucial for accurate rotavirus vaccine efficacy evaluation and post-licensure surveillance.
- Further research is needed to establish a universally accepted severity assessment tool.
Introduction:
The burden of rotavirus gastroenteritis is greatest in India and other developing countries. With the availability of two licensed vaccines and a number of additional vaccines in various stages of development and trial, analysis of detailed clinical information is essential for the development of a uniform method of severity assessment.
Methods:
Diarrhoeal stool samples from 1001 children <5 years of age hospitalized with gastroenteritis were screened for rotavirus using a commercial enzyme immunoassay. Positive samples were confirmed by genotyping using hemi nested multiplex RT-PCR. Detailed clinical data was collected for gastroenteritis assessment for 934 children and extraintestinal presentations were analyzed in 470 children. Severity scoring was carried out for all children using the Vesikari score and in a subset by Clark's scoring system.
Results:
Rotavirus was detected in 35.4% of samples tested between December 2005 and November 2008. Clark's and Vesikari scores showed moderate correlation but varied greatly in the categorization of severe disease. Using Clark's scoring, only 1.6% were categorized as presenting with severe disease in comparison to 66.1% by the Vesikari score. Association of extraintestinal symptoms with rotavirus gastroenteritis was not documented in this study.
Conclusion:
The assessment of disease severity using two common severity scoring systems highlights the difference in the categorization of "severe" disease. This underscores the need for a robust scoring system which is needed for vaccine trial and in post-licensure surveillance, because vaccine efficacy is estimated for protection against severe rotavirus gastroenteritis.
Related Concept Videos
Bacterial Gastroenteritis
Cholera
Viral Meningitis
Bacterial Meningitis I: Introduction
Gastritis III: Clinical Manifestations and Management
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Acute Pyelonephritis II: Diagnostic Studies and Management

