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Journal Article Review Ppublish 101 citations

PubMed: 36073299 DOI: 10.1111/jpc.16197

Respiratory syncytial virus, recurrent wheeze and asthma: A narrative review of pathophysiology, prevention and future directions.

J Paediatr Child Health 58(10):1741-1746

Authors: Elly Binns, Jane Tuckerman, Paul V Licciardi, Danielle Wurzel

Affiliations

  • Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia.
  • The Royal Melbourne Hospital, Melbourne, Victoria, Australia.
  • Infection and Immunity, Murdoch Children's Research Institute, Melbourne, Victoria, Australia.
  • School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia.
  • Department of Respiratory Medicine, Royal Children's Hospital, Melbourne, Victoria, Australia.

Abstract

Globally, respiratory syncytial virus (RSV) is the leading cause of bronchiolitis and pneumonia in young children, and the association between severe RSV disease and later recurrent wheeze and asthma is well established. Whilst a causal link between RSV and wheeze/asthma is not yet proven, immunological evidence suggests skewing towards a Th2-type response, and dampening of IFN-γ antiviral immunity during RSV infection underpins airway hyper-reactivity in a subset of susceptible children after RSV infection. Age at primary RSV infection, viral co-infection and genetic influences may act as effect-modifiers. Despite the significant morbidity and mortality burden of RSV disease in children, there is currently no licensed vaccine. Recent advancements in RSV preventatives, including long-acting monoclonal antibodies and maternal vaccinations, show significant promise and we are on the cusp of a new era in RSV prevention. However, the potential impact of RSV preventatives on subsequent wheeze and asthma remains unclear. The ongoing COVID-19 pandemic and associated public health measures have disrupted the usual seasonality of RSV. Whilst this has posed challenges for health-care services it has also enhanced our understanding of RSV transmission. The near absence of RSV cases during the first year of the pandemic in the context of strict public health measures has provided a rare opportunity to study the impact of delayed age of primary RSV infection on asthma prevalence. In this review, we summarise current understanding of the association between RSV, recurrent wheeze and asthma with a focus on pathophysiology, preventative strategies and future research priorities.

MeSH

Respiratory Syncytial Viruses, Child Welfare, Public Health, Infant Welfare, Viruses, Pandemics, Pediatrics, Asthma, Palivizumab, Infections, Child, Respiratory Syncytial Virus Infections

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