MP Journal of Medical Research
Presented at 13ème Congrès Somipev-Zerouali, Marrakech, 5–7 December 2025 · All posters from this congress
Infectious DiseasesOpen accessPoster communication · 2026-0009

Antibiotic resistance of bacteria isolated from bloodstream infections in pediatrics

English version of a poster presented in French.

Hiba Hormi1✉, K. Lassouli1, M. Fassih1, A. EL Kettani1, M. Soussi Abdellaoui2

  1. 1 Laboratoire de Bactériologie, Virologie et d’hygiène hospitalière , CHU Ibn Rochd- Casablanca
  2. 2 Université Hassan II de Casablanca, Faculté de Médecine et de Pharmacie de Casablanca

Received 6 October 2026 · Accepted 6 October 2026 · Published 6 October 2026

DOI: https://doi.org/10.5281/zenodo.23196155

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Key messages

  1. Les bactériémies en pédiatrie sont associées à une morbidité et mortalité importantes nécessitant une prise en charge adaptée.
  2. Klebsiella pneumoniae, Acinetobacter baumannii et Staphylococcus aureus sont les principales bactéries isolées avec des profils de résistance préoccupants.
  3. La surveillance épidémiologique est cruciale pour limiter la diffusion des souches multirésistantes et améliorer la prise en charge clinique.

Abstract

Introduction

Bloodstream infections are defined by the presence of bacteria in the blood and represent a major management challenge in pediatrics, increasing morbidity and mortality. The objective is to identify the main bacteria responsible for bloodstream infections in pediatric settings and study their antibiotic resistance profiles.

Materials and methods

A retrospective descriptive study over one year (January to December 2024) including children hospitalized in pediatric departments at the Mère-Enfant Abderrahim Harouchi Hospital. Blood cultures were analyzed at the bacteriology-virology laboratory of the University Hospital Center of Casablanca. Bacterial identification was performed by MALDI-TOF mass spectrometry and antibiotic susceptibility testing by automated microdilution (Phoenix), according to CA-SFM/EUCAST recommendations.

Results

Out of 2553 blood cultures, 570 were positive (22.33%). The male/female sex ratio was 1.11. The most frequent bacteria were Klebsiella pneumoniae, Acinetobacter baumannii, and Staphylococcus aureus. High resistance rates were observed, including ESBL-producing Enterobacteriaceae resistant to ciprofloxacin, gentamicin, amikacin, and carbapenems, as well as methicillin-resistant Staphylococcus aureus and significant resistance of Acinetobacter baumannii and Pseudomonas aeruginosa to imipenem and ceftazidime.

Conclusion

Epidemiological surveillance of pathogens responsible for bloodstream infections in pediatrics is essential to limit the emergence and spread of multidrug-resistant strains and optimize clinical management of children.

Original poster

References

  1. S. Boughattas , N. El Haddad , F. Azouzi , L. Tilouche , K. Jihene , S. Halim , S. Ketata , B. Olfa Bactériémie en pédiatrie
  2. Droz, N., Hsia, Y., Ellis, S., Dramowski, A., Sharland, M. and Basmaci, R. (2019) Bacterial Pathogens and Resistance Causing Community Acquired Paediatric Bloodstream Infections in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis. Antimicrobial Resistance & Infection Control, 8, 207.
  3. Bacteria isolated from blood cultures in a neonatal and pediatric intensive care unit and their antibiotic resistance: 5-year results Orhan Z., Kayış A., Kirişci Ö., Küçük B., Altun M., Aral M. Trends in Pediatrics, vol.6, no.2, pp.108-115, 2025
Keywords
bacteremia · antibiotic resistance · pediatrics · blood culture · bacteria
Received
6 October 2026
Accepted
6 October 2026
Published
6 October 2026
Peer review
Single-anonymized review by the Editorial Board · How we review
DOI
https://doi.org/10.5281/zenodo.23196155
License
© The Authors 2026. Distributed under CC BY 4.0
Journal
MP Journal of Medical Research · ISSN 3144-8402

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