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Published on: August 30, 2014
Resistance in respiratory tract pathogens and antimicrobial use in Icelandic and Lithuanian children
Einar K R Hjaltested1, Jolanta Bernatoniene, Helga Erlendsdottir
1Department of Clinical Microbiology, Landspitali University Hospital, Reykjavik, Iceland.
Insights
Antimicrobial resistance in children
Area of Science:
- Microbiology
- Pediatrics
- Epidemiology
Background:
- Respiratory tract pathogens are a common cause of childhood illness.
- Antimicrobial resistance is a growing global health concern.
- Understanding resistance patterns and antimicrobial use in children is crucial for public health.
Purpose of the Study:
- To compare antimicrobial resistance rates and usage patterns in pediatric populations in Iceland and Lithuania.
- To investigate the correlation between antimicrobial consumption and resistance levels in nasopharyngeal bacteria.
- To identify specific pathogen prevalence and resistance profiles in healthy children.
Main Methods:
- Nasopharyngeal swabs were collected from healthy children in day-care centers in Reykjavik, Iceland, and Vilnius, Lithuania.
- Cultures were performed to identify pneumococci, Haemophilus influenzae, and Moraxella catarrhalis.
- Antimicrobial use was assessed via questionnaires, and resistance rates were determined.
Main Results:
- High carriage rates for pneumococci, H. influenzae, and M. catarrhalis were observed in both countries.
- Penicillin non-susceptible pneumococci prevalence was higher in Reykjavik (11%) than in Vilnius (5%).
- Despite higher antimicrobial use in Vilnius, Reykjavik showed greater antimicrobial resistance, indicating complex relationships.
Conclusions:
- Antimicrobial resistance rates in pediatric respiratory pathogens are influenced by factors beyond recent antimicrobial use alone.
- Differences in resistance patterns between Iceland and Lithuania highlight the need for geographically specific surveillance and stewardship.
- Further research is needed to elucidate the multifaceted drivers of antimicrobial resistance in pediatric populations.
Abstract:
To assess resistance rates among respiratory tract pathogens and antimicrobial usage of children in Iceland and Lithuania, and to correlate usage patterns with resistance rates, nasopharyngeal swabs were taken from healthy children attending day-care centres in Reykjavik (n = 6) and Vilnius (n = 13), and cultured for pneumococci, Haemophilus influenzae and Moraxella catarrhalis. Information about recent antimicrobial use was obtained by a questionnaire. 50% and 51% carried pneumococci, 59% and 67% carried H. influenzae and 60% and 46% carried M. catarrhalis, in Reykjavik (n = 297) and Vilnius (n = 508), respectively. The prevalence of penicillin non-susceptible pneumococci was 11% in Reykjavik (mainly serotype 6B) and 5% in Vilnius (mainly 23F). At the time of sampling 3% of the children in Reykjavik and 8% in Vilnius were receiving antimicrobials. Children carrying penicillin non-susceptible pneumococci had used antimicrobials more frequently in the preceding month and this was significant for the Icelandic children (p < 0.0002). Antimicrobial use was more common in Vilnius than in Reykjavik, yet antimicrobial resistance was more common in Reykjavik. Resistance rates cannot be predicted only on the basis of recent antimicrobial use.
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