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Background: Vaccinations represent an easily accessible, safe, and important method for preventing infections. Patients with primary immunodeficiencies (PID) are more susceptible to infections and should receive an extended spectrum of immunizations in many countries.

Methods: Between January 2019 and May 2020, vaccination certificates of 70 patients with PID from the regions of Würzburg and Hanover in Germany were evaluated.

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Importance: The impact of vaccination, antibiotics, and anti-inflammatory treatment on pathogen distribution and outcome of bacterial meningitis over the past century is uncertain.

Objective: To describe worldwide pathogen distribution and case fatality ratios of community-acquired bacterial meningitis.

Data Sources: Google Scholar and MEDLINE were searched in January 2022 using the search terms bacterial meningitis and mortality.

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Article Synopsis
  • Streptococcus pneumoniae is a key cause of pneumonia in children, and a study (CAP-IT trial) examined antibiotic treatment effects on serotype prevalence and resistance, finding no significant differences based on dosage or duration of amoxicillin.
  • In-depth genomic analysis of 390 pneumococcal isolates revealed that serotypes 15B/C, 11A, 15A, and 23B1 were the most common, with varying levels of resistance to penicillin and amoxicillin, but overall low resistance rates.
  • The findings suggest that current amoxicillin treatment does not influence serotype prevalence, indicating a need for vaccines covering a broader range of pneumococcal serotypes.
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Pneumococcal conjugate vaccines (PCVs) prevent nasopharyngeal colonization with vaccine serotypes of Streptococcus pneumoniae, leading to reduced transmission of pneumococci and stronger population-level impact of PCVs. In 2017 we conducted a cross-sectional pneumococcal carriage study in Indonesia among children aged <5 years before 13-valent PCV (PCV13) introduction. Nasopharyngeal swabs were collected during visits to community integrated health service posts at one peri-urban and one rural study site.

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Fusion of PspA to detoxified pneumolysin enhances pneumococcal vaccine coverage.

PLoS One

December 2023

Laboratório de Microbiologia Molecular e Clínica, Universidade São Francisco, Bragança Paulista, Brazil.

Despite the implementation of conjugate vaccines in several countries, S. pneumoniae continues to pose a great burden worldwide, causing around 1 million annual deaths. Pneumococcal proteins have long been investigated as serotype-independent vaccines against this pathogen, with promising results.

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