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Published on: December 2, 2012
An outbreak of echovirus meningitis in children
Narayanan Sathish1, Julius Xavier Scott, R V Shaji
1Department of Clinical Virology, Christian Medical College and Hospital, Vellore, India.
Insights
An enterovirus outbreak caused aseptic meningitis in children, with echovirus serotypes 3, 4, and 30 identified. Most children recovered quickly after hospitalization.
Area of Science:
- Pediatrics
- Virology
- Infectious Diseases
Background:
- Aseptic meningitis is a significant cause of pediatric hospital admissions.
- Enteroviruses are a common cause of viral meningitis in children.
Purpose of the Study:
- To investigate an outbreak of aseptic meningitis in children at a tertiary care hospital.
- To identify the causative agent of the outbreak through virological analysis.
Main Methods:
- Clinical data and stool samples were collected from 25 hospitalized children.
- Stool samples underwent virological investigations, including cell culture and RT-PCR.
- Partial sequencing of the enterovirus genome (VP1 region) was performed.
Main Results:
- Fever and vomiting were the most common symptoms; CSF analysis revealed lymphocytic pleocytosis.
- Enterovirus cytopathogenic effect (CPE) was observed in 14 of 25 stool samples.
- RT-PCR confirmed enterovirus RNA in these 14 samples, with sequencing identifying echovirus serotypes 3, 4, and 30.
Conclusions:
- Enteroviruses, specifically echoviruses, were the cause of the aseptic meningitis outbreak.
- The identified echovirus serotypes are associated with pediatric meningitis.
- Children experienced rapid recovery and discharge, indicating a generally favorable prognosis.
Abstract:
An outbreak of aseptic meningitis in children as evidenced by increase in the number of admissions in a tertiary care hospital is described. Clinical data and stool samples were collected from 25 hospitalized infants and young children. The stool samples were subjected to virological investigations. Fever and vomiting were the commonest symptoms. Cerebrospinal fluid (CSF) showed lymphocytic pleocytosis in majority of cases. Of the 25 stool samples, 14 showed an enterovirus specific cytopathogenic effect (CPE) in rhabdomyosarcoma (RD) cell line. All the 14 samples were positive for enterovirus RNA by reverse transcription-polymerase chain reaction (RT-PCR). Partial sequencing of the Virion protein 1 (VPI) region of the enterovirus genome carried out on the first 7 isolates revealed 5 isolates to be echovirus serotype 4 and one each to be echovirus serotypes 3 and 30. All children showed a rapid recovery and were discharged within 3 days of admission.
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