Author

E. Ozer

3 papers indexed here

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Open access Sep 2026

L2 β-lactamase contributes to ceftolozane-tazobactam resistance in Pseudomonas aeruginosa

ABSTRACT The prevalence of non-susceptibility to ceftolozane-tazobactam (C/T) among Pseudomonas aeruginosa remains low, but novel mechanisms of C/T resistance are of concern. Herein, we describe a novel P. aeruginosa genotype associated with high-level C/T resistance (>256/4 µg/mL) in a single patient. Whole-genome seq...

Preeti Garai, Sophia H. Nozick, Caroline C. Jozefczyk et al. · Antimicrobial Agents and Che... · 0 citations

Open access Aug 2026

Molecularepidemiology and antimicrobial resistance determinants of Corynebacterium diphtheriae causing infections in Karachi, Pakistan, 2023-2024.

BACKGROUND Diphtheria remains endemic in Pakistan with cases increasing following the COVID-19 pandemic despite on-going vaccination programs. This study analyzes the genomic diversity, virulence and antimicrobial resistance patterns of pharyngeal diphtheria strains collected during the Karachi outbreak. METHODS C. d...

Sobia Khan, S. Irfan, J. Ashraf et al. · International Journal of Inf... · 0 citations

Review Open access Aug 2026

Intra-Host Evolution of SARS-CoV-2 During Persistent Infection of Pediatric COVID-19 Patients

Children typically experience milder SARS-CoV-2 infection than adults, yet a subset—especially those with immune compromise—develop persistent infection. This study examined clinical characteristics and intra-host viral evolution in pediatric patients with prolonged COVID-19, comparing immunocompetent and immunoc...

Charlie R. Boyle, Tien Doan, Estefany Rios-Guzman et al. · Journal of the Pediatric Inf... · 0 citations