AI Article Synopsis

  • Respiratory Syncytial Virus (RSV) primarily affects young children, especially those under 24 months old, causing severe respiratory infections, and is a global health concern according to the WHO; Nirsevimab, a long-acting monoclonal antibody, has been approved to prevent RSV in infants.
  • A narrative review compiled effectiveness data on Nirsevimab, assessing the strengths and limitations of existing studies while focusing on its potential for disease prevention.
  • The findings from the studies indicate that Nirsevimab is effective in real-world settings, significantly lowering hospitalizations and ICU admissions for RSV, though challenges related to supply and study variability remain; ongoing research is essential to evaluate its long-term effectiveness and

Article Abstract

Introduction: Respiratory Syncytial Virus (RSV) predominantly affects young children, with a peak incidence in temperate regions of the northern hemisphere from October to May. Children under 24 months of age are particularly vulnerable because of the immaturity of their lungs and immune systems, often leading to severe respiratory infections. The World Health Organization (WHO) recognizes RSV as a global health priority. Recently, Nirsevimab, a long-acting monoclonal antibody (mAb), was authorised to prevent RSV disease in infants.

Methods: Our narrative review brings together the effectiveness data of Nirsevimab available in the literature, highlighting the strengths and weaknesses of the published studies and the prevention opportunities represented by the new preparation.

Results: All reviewed studies provide evidence for the effectiveness of immunisation with Nirsevimab in real-world settings, beyond the controlled conditions of clinical trials, and highlight its safety and feasibility. Nirsevimab significantly reduces RSV hospitalisations and Intensive Care Unit (ICU) admissions. High coverage and high efficacy of immunisation have been reported, although supply issues and variability in studies present challenges.

Conclusions: Continued research and surveillance are critical to understanding the long-term effectiveness of Nirsevimab. Overall, available data provide valuable insights into the efficacy, safety, and impact of immunisation with Nirsevimab in preventing severe RSV infections in infants, highlighting its potential to reduce the burden of RSV-related hospitalisations and improve paediatric health outcomes.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11487721PMC
http://dx.doi.org/10.15167/2421-4248/jpmh2024.65.2.3329DOI Listing

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