Related Experiment Video
Updated: Jun 3, 2025
11:48
Generation, Amplification, and Titration of Recombinant Respiratory Syncytial Viruses
Published on: April 4, 2019
15.3K
Exploring RSV transmission patterns in different age groups in the United States.
Ke Li1, Virginia E Pitzer1, Daniel M Weinberger1
1Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA.
Medrxiv : the Preprint Server for Health Sciences
|January 7, 2025
Summary
Respiratory syncytial virus (RSV) epidemics spread differently across age groups. Understanding these transmission patterns is key to developing effective RSV vaccination strategies for all populations.
Area of Science:
- Epidemiology
- Public Health
- Virology
Background:
- Respiratory syncytial virus (RSV) poses a significant public health threat, particularly to infants and older adults, with predictable seasonal outbreaks in the US.
- Current understanding of RSV epidemic timing and transmission dynamics across different age demographics remains limited.
- This knowledge gap hinders the development of targeted and effective RSV vaccination policies.
Purpose of the Study:
- To investigate the epidemic timing and transmission patterns of RSV across various age groups in 12 US states.
- To elucidate the relative contributions of within-group versus between-group RSV transmission within each age demographic.
- To inform the development of optimized RSV vaccination strategies based on age-specific transmission insights.
Main Methods:
- Analysis of RSV epidemic timing and transmission patterns across diverse age groups (infants, young children, school-aged children, adults, elderly) in 12 US states from 2018 to 2024.
- Utilized a semi-mechanistic, age-structured, spatiotemporal modeling approach to quantify transmission dynamics.
- Differentiated between within-group and between-group transmission contributions to RSV hospitalizations.
Main Results:
- Infants (<1 year) and young children (1-4 years) exhibited the earliest RSV epidemic timing, while the elderly (>65 years) experienced the latest.
- Between-group transmission was a major driver (>50%) of RSV hospitalizations in infants, school-aged children (5-17 years), and adults (18-64 years).
- In contrast, RSV incidence in the elderly population was predominantly influenced by within-group transmission.
Conclusions:
- Distinct age groups play unique and critical roles in the propagation of RSV epidemics throughout the US.
- Age-specific transmission patterns reveal differential susceptibility and contribution to overall disease burden.
- Findings provide crucial evidence for tailoring and implementing more effective, age-targeted RSV vaccination policies.
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