Detection of several carbapenems resistant and virulence genes in classical and hyper-virulent strains of Klebsiella pneumoniae isolated from hospitalized neonates and adults in Khartoum

在喀土穆住院新生儿和成人中分离出的经典型和高毒力型肺炎克雷伯菌菌株中检测到多种碳青霉烯类耐药基因和毒力基因

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Abstract

OBJECTIVE: Klebsiella pneumoniae (K. pneumoniae) involves both community-acquired and nosocomial infections. It is responsible for a wide variety of infections, including infections of the urinary tract, pneumonia, bacteremia, meningitis, wound infection and purulent abscesses. We constructed this study to detect several carbapenems resistant and virulence genes in classical and hyper-virulent strains of K. pneumoniae isolated from hospitalized neonates and adults in Khartoum state. RESULTS: Seventy percent of the isolates were resistant to ceftazidime, 18(30%) to ciprofloxacin, 23(38.3%) to chloramphenicol, 24(40%) to gentamicin and 8% to imipenem, 35% were multidrug-resistant, and 7% extensively drug-resistant, all blood isolates (n = 14) were resistant to ceftazidime. entB was the most predominant virulence gene (93.3%), followed by mrkD (78.3%), kfu (60%), K2 (51.7%), magA (18.3%) and rmpA (5%). bla(OXA-48) was the most predominant carbapenem-resistant gene (68.3%), followed by bla(NDM) (10%), bla(KPC) (8.3%), and bla(IMP) (3.3%). Eight hyper-virulent strains were positive for bla(OXA-48) and two for bla(NDM) genes.

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