Antimicrobial profiles of bacterial clinical isolates from the Gabonese National Laboratory of Public Health: data from routine activity

Léonard Kouegnigan Rerambiah; Jean-Charles Ndong; Pauline Mbakob Mengue Massoua; Severin Medzegue; Médard Elisee-Ndam; Armel Mintsa-Ndong; Joel Fleury Djoba Siawaya

doi:10.1016/j.ijid.2014.01.015

Antimicrobial profiles of bacterial clinical isolates from the Gabonese National Laboratory of Public Health: data from routine activity

Int J Infect Dis. 2014 Dec:29:48-53. doi: 10.1016/j.ijid.2014.01.015. Epub 2014 Oct 30.

Authors

Léonard Kouegnigan Rerambiah¹, Jean-Charles Ndong², Pauline Mbakob Mengue Massoua¹, Severin Medzegue³, Médard Elisee-Ndam³, Armel Mintsa-Ndong¹, Joel Fleury Djoba Siawaya⁴

Affiliations

¹ Unité des Recherche et de Diagnostic Spécialisé, Laboratoire National de Santé Publique, Avenue felix Eboué, Libreville, BP 10736, Gabon.
² Unité des Recherche et de Diagnostic Spécialisé, Laboratoire National de Santé Publique, Avenue felix Eboué, Libreville, BP 10736, Gabon; Service de Bactériologie, Laboratoire National de Santé Publique, Libreville, Gabon.
³ Service de Bactériologie, Laboratoire National de Santé Publique, Libreville, Gabon.
⁴ Unité des Recherche et de Diagnostic Spécialisé, Laboratoire National de Santé Publique, Avenue felix Eboué, Libreville, BP 10736, Gabon. Electronic address: joelfleury@yahoo.com.

PMID: 25449235
DOI: 10.1016/j.ijid.2014.01.015

Abstract

Background: The present study is one of the first to provide a picture of antimicrobial resistance for a range of bacteria and antimicrobial classes in Gabon, Central Africa.

Methods: During the year 2010, 146 urine cytology, 143 blood cultures, 107 vaginal swabs, 23 urethral swabs, and 18 other culture examinations were positives. All isolates were tested for antibiotic sensitivity.

Results: Four hundred thirty-seven microorganisms were isolated: 210 enterobacteria, 166 staphylococci, 38 streptococci, 14 Acinetobacter, and nine Stenotrophomonas. Of the Klebsiella isolates, 18% and 30% were found to be resistant to selected third-generation cephalosporins (3CG) and fourth-generation cephalosporins (4CG), respectively. Sixty-seven percent of Escherichia coli isolates were resistant to amoxicillin with clavulanic acid. Between 3% and 30% of E. coli isolates were resistant to selected 3CG. All Enterobacter cloacae isolates were sensitive to imipenem. Resistance to quinolones/fluoroquinolones was seen in 21-50% of E. coli isolates. Twenty-six percent of E. cloacae showed resistance to ceftazidime and 37% to cefotaxime. The resistance rate to quinolones ranged between 58% and 78%. Thirty-two percent of Staphylococcus isolates were resistant to gentamicin. Low resistance rates to teicoplanin (2-4%) were observed. Thirty-seven percent of isolated Staphylococcus aureus and 61% of isolated Staphylococcus saprophyticus were resistant to both penicillin G and oxacillin. Streptococcus isolates had low resistance rates to erythromycin, ceftriaxone, and ciprofloxacin (5%, 7%, and 14%, respectively) and were highly resistant to tetracycline, gentamicin, and sulfamethoxazole-trimethoprim (92%, 91%, and 62%, respectively).

Conclusions: The antimicrobial resistance profiles seen here are of concern. To control the spread of drug-resistant bacteria, clinicians should be cognizant of their local antimicrobial resistance patterns.

Keywords: Antimicrobial; Bacteria; Clinical isolates; Resistance.

MeSH terms

Anti-Bacterial Agents / pharmacology
Bacteria / drug effects
Bacteria / isolation & purification
Clinical Laboratory Techniques
Drug Resistance, Bacterial*
Enterobacteriaceae / drug effects
Escherichia coli / drug effects
Gabon
Humans
Laboratories
Staphylococcus / drug effects
Staphylococcus aureus / drug effects

Substances

Anti-Bacterial Agents