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Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/43
Published on: September 11, 2020
[Epidemiologic, clinical and laboratory observations of some Streptococcus pneumoniae serotypes implicated in the
Letiţia Doina Duceac1, Stela Goţia, Gabriela Coman
1Spitalul Clinic de Urgenţe Sf. Maria laşi, Compartimentul de Epidemiologie, Universitatea de Medicină si Farmacie Gr.T. Popa Iaşi, Facultatea de Medicină.
Insights
Pneumococcal vaccination (PNEUMO 23) in children with asthma reduced Streptococcus pneumoniae infections. This led to fewer asthma exacerbations and decreased disease severity.
Area of Science:
- Pediatric Pulmonology
- Infectious Diseases
- Vaccinology
Context:
- Asthma is a chronic respiratory condition in children, often exacerbated by infections.
- Streptococcus pneumoniae is a common pathogen causing respiratory infections.
- Vaccination strategies are crucial for managing childhood asthma and preventing infections.
Purpose:
- To evaluate the impact of pneumococcal vaccination on Streptococcus pneumoniae carriage in children with asthma.
- To assess the effect of vaccination on the frequency and severity of asthma exacerbations.
- To determine the efficacy of PNEUMO 23 in preventing pneumococcal infections in this cohort.
Summary:
- A study involved 103 children undergoing vaccination against Streptococcus pneumoniae.
- Nasopharyngeal swabs revealed S. pneumoniae serotypes 6, 8, 14, and 19 in 39 children prior to vaccination.
- Post-vaccination with PNEUMO 23, these strains were undetectable, alongside a reduction in pneumococcal infections.
Impact:
- Vaccination significantly decreased the incidence of pneumococcal infections in children with asthma.
- A notable reduction in asthma crises and overall disease severity was observed post-vaccination.
- Pneumococcal vaccination emerges as a key intervention for improving asthma management and outcomes.
Abstract:
The Authors present the results of a multidisciplinary study carried out on a sample of 103 children comprised in a programme of vaccination against Streptococcus pneumoniae infections, in order to avoid the worsening of their asthma. In the nasopharyngeal exudate of 39 children, we detected the presence of S. pneumoniae strains of serotypes 6, 8, 14, and 19 and their absence after vaccination with PNEUMO 23. This was followed by a significant decrease in the incidence of pneumococcal infections and also by the reduction in the frequency of crises and severity of the disease.
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