Full Length Research Paper
Abstract
This study aimed to characterize the microorganisms responsible for severe acute respiratory infections in adult patients hospitalized at the University Hospital Center of Cocody in Abidjan. The biological material consisted of bronchoalveolar lavage fluid (BALF). Isolation and identification of bacterial strains, along with susceptibility testing, were performed using standard microbiological techniques. The bacteria identified included three strains of Klebsiella pneumoniae (75%) and one strain of Streptococcus pneumoniae (25%). Phenotypic analysis of the isolated strains revealed a β-lactam resistance phenotype, specifically the production of extended-spectrum β-lactamases (ESBL) in K. pneumoniae (66.7%), and a resistance phenotype to macrolides, lincosamides, and streptogramin B (MLSb). The resistance rate of K. pneumoniae strains to ceftriaxone, cefepime, cefotaxime, nalidixic acid, norfloxacin, levofloxacin, gentamicin, and tobramycin was 66.7%. The S. pneumoniae strain showed resistance to norfloxacin, ciprofloxacin, nalidixic acid, trimethoprim-sulfamethoxazole, clindamycin, and erythromycin. This study facilitated the isolation of two different bacterial strains responsible for pneumonia in adult patients.
Key words: Pneumopathy, BALF, bacteria, resistance, Abidjan.
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