ArticleNew microbes and new infections2024
Serotype distribution and antimicrobial resistance of
Article in New microbes and new infections, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Antibiotic non-susceptibility associated serotypes of invasive pneumococcal disease - a nationwide population study from Switzerland, 2012-2022.Pneumonia (Nathan Qld.) · 2026Article
- The Convergence of Antimicrobial Resistance and Virulence inMicroorganisms · 2026Review
- Machine learning and meningitis prediction in pediatric invasive pneumococcal disease: a retrospective single-center study.BMC infectious diseases · 2026Article
- Article
- Article
- Long-term impact of the 10-valent pneumococcal conjugate vaccine on nonvaccine pneumococcal serotypes: implications for practice and surveillance.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2025Article
- The microbiological characteristics and diagnosis ofHuman vaccines & immunotherapeutics · 2025Review
- Epidemiology, changing resistance trends and serotypes ofFrontiers in cellular and infection microbiology · 2025Article
- Epidemiology and antimicrobial resistance of pathogens in pediatric sinus infections: a retrospective study at a Japanese otolaryngology clinic (2023-2025).Frontiers in cellular and infection microbiology · 2025Article
- AliC and AliD of nonencapsulatedFrontiers in cellular and infection microbiology · 2025Article
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8 authors.
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Abstract
Background: The prevalence of serotypes and antimicrobial resistance of Methods: A total of 353 pneumococcal isolates were collected from Japanese children between March and July 2023. All the isolates were serotyped using genetic methods and tested for susceptibility to 14 antimicrobial agents. Results: Among the 353 isolates, the prevalence rates of non-PCV13 and non-PCV20 serotypes were 96.9 % and 77.9 %, respectively, including the dominant non-PCV13/PCV20 serotypes 23A (16.1 %), 35B (15.3 %), 15A (10.5 %), 15C (9.3 %), and 34 (9.1 %), which accounted for 60.3 % of all isolates. The high non-susceptibility rates were observed for macrolides (erythromycin, azithromycin, and clarithromycin; ≥81.9 %) and tetracycline (80.7 %). Penicillin non-susceptibility and multidrug resistance (MDR) were detected in 49.9 % (6.8 % resistant and 43.1 % intermediate) and 68.3 % of the isolates, respectively. The three most common non-PCV13/PCV20 serotypes 15A, 23A, and 35B exhibited high prevalence rates of penicillin non-susceptibility (≥89.5 %) and MDR (≥81.5 %). Extensive drug resistance was observed in 10.5 % of all isolates belonging to six different serotypes (12F, 23A, 11A, 15A, 35B, and 15B) and in the non-encapsulated strains of Conclusions: Our study revealed a higher prevalence of non-susceptibility to penicillin with MDR in the three most common non-PCV13/PCV20 serotypes 15A, 23A, and 35B, in Japan, suggesting their persistence in the PCV13 era.
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