# Characterization of genes involved in the iron acquisition system of multidrug-resistant Acinetobacter baumannii

## TL;DR

This study examines the presence of virulence genes and antibiotic resistance in multidrug-resistant Acinetobacter baumannii clinical isolates.

## Contribution

The study identifies the prevalence of BauA and BasD genes in MDR A. baumannii strains using PCR.

## Key findings

- 82% of MDR A. baumannii strains contained both BauA and BasD genes.
- Oxa-51 PCR confirmed the identity of all 50 tested A. baumannii isolates.
- Antibiotic resistance patterns varied, emphasizing the need for improved treatment strategies.

## Abstract

The high prevalence of virulence-associated genes observed in Acinetobacter baumannii isolates underscores the pathogenic potential of this bacterium. The presence of these genes confers enhanced survival, evasion of host defenses, and increased virulence. In this study, we investigate the presence and distribution of genes associated with virulence and assess the antimicrobial susceptibility patterns in clinical isolates of A. baumannii.

This research focused on examining the 50 multi-drugs resistant (MDR) strains that were included in this investigation. The identification of these strains was validated using Oxa-51. The presence of the BauA and BasD genes was determined through conventional PCR techniques.

The results derived from Oxa-51 PCR confirmed the identification of all 50 selected strains of A. baumannii. Additionally, both the BauA and BasD genes were successfully identified in 82% of the MDR strains.

Moreover, the varying antibiotic resistance patterns highlight the challenge in treating A. baumannii infections effectively. Strategies such as combination therapy, antimicrobial stewardship, and infection control measures should be considered to combat this multidrug-resistant pathogen.