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Updated: May 26, 2025
09:01
An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
7.9K
Microevolution and phylogenomic study of Respiratory Syncytial Virus type A
Ashfaq Ahmad1, Sidra Majaz1, Aamir Saeed1
1Department of Bioinformatics, Faculty of Natural and Computational Sciences, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan.
Plos One
|February 25, 2025
Summary
Respiratory syncytial virus (RSV) transmission patterns reveal distinct geographical clusters, with Australian RSV strains originating from Europe. This genomic analysis identifies key mutation hotspots for epidemiological control and drug development.
Area of Science:
- Virology
- Epidemiology
- Genomics
Background:
- Respiratory syncytial virus (RSV) causes significant respiratory illness in vulnerable populations, including the elderly and children.
- The RSV genome encodes ten proteins essential for its replication and pathogenesis.
- Understanding RSV transmission dynamics is crucial for public health interventions.
Purpose of the Study:
- To investigate the geographical transmission patterns of respiratory syncytial virus (RSV) using complete genome data.
- To identify hotspot regions of genetic variation within the RSV genome.
- To analyze selection pressures acting on RSV genes.
Main Methods:
- Utilized Viral Evolutionary Network Analysis System on full-length RSV genomes.
- Employed HyPhy software to determine selection pressures.
- Performed comprehensive mutational analysis across all RSV genes, focusing on RSV type A.
Main Results:
- RSV strains from the Americas showed limited mixing with European strains.
- Australian RSV genomes are descendants of European strains.
- The United Kingdom samples displayed substantial genetic diversity.
- Proteins G and L exhibited significant positive selection, indicating adaptive evolution.
- Identified 31 hotspot substituting regions globally in RSV type A.
Conclusions:
- RSV transmission exhibits distinct geographical segregation.
- Specific genes, particularly G and L, are under positive selection, suggesting roles in viral adaptation.
- The genomic insights provide a foundation for targeted epidemiological surveillance and antiviral strategies against RSV.
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