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Bacterial Artificial Chromosomes: A Functional Genomics Tool for the Study of Positive-strand RNA Viruses
Published on: December 29, 2015
Echovirus 30, Jiangsu Province, China
Yan Na Zhao1, Qing Wu Jiang, Ren Jie Jiang
1Fudan University, Shanghai, China.
Emerging Infectious Diseases
|April 15, 2005
Summary
A large outbreak of aseptic meningitis in China, primarily affecting children, was caused by a distinct lineage of echovirus 30. This finding identifies a new viral strain responsible for the widespread pediatric illness.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Aseptic meningitis outbreaks pose significant public health challenges, particularly in pediatric populations.
- Identifying the specific etiologic agent is crucial for effective outbreak control and prevention strategies.
Purpose of the Study:
- To identify the causative agent of a large aseptic meningitis outbreak in Jiangsu Province, China.
- To characterize the genetic features of the identified viral isolates.
Main Methods:
- Cell culture and cytopathic effect observation on MRC-5 cells.
- Enterovirus-specific reverse transcriptase-polymerase chain reaction (RT-PCR).
- Neutralization assays and sequencing of the viral capsid protein VP1 gene.
Main Results:
- Sixty-six cerebrospinal fluid specimens were analyzed, with 18 showing characteristic enterovirus cytopathic effects.
- Molecular and sequence analyses identified the causative agent as echovirus 30 (FDJS03 isolates).
- Phylogenetic analysis revealed a distinct lineage of echovirus 30, with at least 10% nucleotide sequence difference in VP1 compared to global strains.
Conclusions:
- A novel lineage of echovirus 30 was identified as the probable cause of the 2003 aseptic meningitis outbreak in Jiangsu Province.
- This discovery highlights the emergence of distinct viral strains and their potential impact on public health.
- Further research into the evolution and characteristics of this echovirus 30 lineage is warranted.
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