All Stories

  1. Coexistence of carbapenem resistance and hypervirulence in clinical Klebsiella pneumoniae isolates: a molecular and phenotypic analysis

    Article • BMC Infectious Diseases, September 2025, Springer Science + Business Media

    Ahmed El-Gendy, Dr Mohamed El-Sayed Ahmed

  2. Characterization, genomic analysis and preclinical evaluation of the lytic Staphylococcus bacteriophage PSK against methicillin-resistant Staphylococcus aureus wound isolate

    Article • Annals of Clinical Microbiology and Antimicrobials, February 2025, Springer Science + Business Media

    Dr Mohamed El-Sayed Ahmed

  3. Evaluation of Phenotypic and Genotypic Patterns of Aminoglycoside Resistance among Certain Multidrug-Resistant Gram-Negative Bacterial Isolates Collected from Different Egyptian Hospitals

    Article • Azhar International Journal of Pharmaceutical and Medical Sciences, June 2024, Egypts Presidential Specialized Council for Education and Scientific Research

    Dr Mohamed El-Sayed Ahmed

  4. Tailoring of Sodium hypochlorite Lipid-free nanoemulsion: Ex-Vivo Comparative Study with Chlorhexidine HCl Nanoemulsion as an Antibacterial Root Canal Irrigant

    Article • Journal of Pharmaceutical Sciences and Drug Manufacturing, January 2024, Egypts Presidential Specialized Council for Education and Scientific Research

    Dr Mohamed El-Sayed Ahmed

  5. Fungal Diseases Caused by Serious Contamination of Pharmaceuticals and Medical Devices, and Rapid Fungal Detection Using Nano-Diagnostic Tools: A Critical Review

    Article • Current Microbiology, November 2023, Springer Science + Business Media

    Dr Mohamed El-Sayed Ahmed, Dr Heba S Abbas

  6. Correction to: Carriage of distinct blaKPC-2 and blaOXA-48 plasmids in a single ST11 hypervirulent Klebsiella pneumoniae isolate in Egypt

    Article • BMC Genomics, April 2022, Springer Science + Business Media

    Dr Mohamed El-Sayed Ahmed

  7. Whole-Genome Sequencing Reveals the High Nosocomial Transmission and Antimicrobial Resistance of Clostridioides difficile in a Single Center in China, a Four-Year Retrospective Study

    Article • Microbiology Spectrum, January 2022, ASM Journals

    Dr Mohamed El-Sayed Ahmed

  8. Carriage of distinct blaKPC-2 and blaOXA-48 plasmids in a single ST11 hypervirulent Klebsiella pneumoniae isolate in Egypt

    Article • BMC Genomics, January 2022, Springer Science + Business Media

    Reem Hassan , Dr Mohamed El-Sayed Ahmed

  9. Prevalence of mcr-1 in Colonized Inpatients, China, 2011–2019

    Article • Emerging Infectious Diseases, September 2021, Centers for Disease Control and Prevention (CDC)

    Dr Mohamed El-Sayed Ahmed

  10. Emergence of Hypervirulent Carbapenem-Resistant Klebsiella pneumoniae Coharboring a bla NDM-1 -Carrying Virulent Plasmid and a bla KPC-2 -Carrying Plasmid in an Egyptian Hospital

    Article • mSphere, May 2021, ASM Journals

    Dr Mohamed El-Sayed Ahmed, Reem Hassan

  11. Prevalence, genomic characteristics, and transmission dynamics of mcr-1-positive Salmonella enterica Typhimurium from patients with infectious diarrhea

    Article • International Journal of Medical Microbiology, May 2021, Elsevier

    Dr Mohamed El-Sayed Ahmed

  12. Emergence of a Hypervirulent Carbapenem-Resistant Klebsiella pneumoniae Co-harbouring a blaNDM-1-carrying Virulent Plasmid and a blaKPC-2-carrying Plasmid in an Egyptian Hospital

    Article • March 2021, Cold Spring Harbor Laboratory Press

    Dr Mohamed El-Sayed Ahmed

  13. Characterization of a Plasmid-Encoded Resistance-Nodulation-Division Efflux Pump in Klebsiella pneumoniae and Klebsiella quasipneumoniae from Patients in China

    Article • Antimicrobial Agents and Chemotherapy, January 2021, ASM Journals

    Dr Mohamed El-Sayed Ahmed

  14. Molecular characterization of carbapenem-resistant and virulent plasmids in Klebsiella pneumoniae from patients with bloodstream infections in China

    Article • Emerging Microbes & Infections, January 2021, Taylor & Francis

    Dr Mohamed El-Sayed Ahmed

  15. Rapid Fulminant Progression and Mortality Secondary to Aeromonas dhakensis Septicemia with Hepatitis B Virus Infection Following the Ingestion of Snakehead Fish in Mainland China: A Case Report

    Article • Foodborne Pathogens and Disease, December 2020, Mary Ann Liebert Inc

    Dr Mohamed El-Sayed Ahmed

  16. Genomic patterns and characterizations of chromosomally-encoded mcr-1 in Escherichia coli populations

    Article • Gut Pathogens, November 2020, Springer Science + Business Media

    Dr Mohamed El-Sayed Ahmed

  17. Co-Occurrence of mcr-9 and blaNDM-1 in Enterobacter cloacae Isolated from a Patient with Bloodstream Infection

    Article • Infection and Drug Resistance, May 2020, Taylor & Francis

    Dr Mohamed El-Sayed Ahmed

  18. Dynamics of mcr-1 prevalence and mcr-1-positive Escherichia coli after the cessation of colistin use as a feed additive for animals in China: a prospective cross-sectional and whole genome sequencing-based molecular epidemiological study

    Article • The Lancet Microbe, May 2020, Elsevier

    Dr Mohamed El-Sayed Ahmed

  19. Involvement of Transcription Elongation Factor GreA in Mycobacterium Viability, Antibiotic Susceptibility, and Intracellular Fitness

    Article • Frontiers in Microbiology, March 2020, Frontiers

    Dr Mohamed El-Sayed Ahmed

  20. Colistin and its role in the Era of antibiotic resistance: an extended review (2000–2019)

    Article • Emerging Microbes & Infections, January 2020, Taylor & Francis

    Dr Mohamed El-Sayed Ahmed

  21. Formulation and characterization of chlorhexidine HCl nanoemulsion as a promising antibacterial root canal irrigant: in-vitro and ex-vivo studies

    Article • International Journal of Nanomedicine, July 2019, Dove Medical Press

    Dr Mohamed El-Sayed Ahmed

  22. Multiplex loop-mediated isothermal amplification (multi-LAMP) assay for rapid detection of mcr-1 to mcr-5 in colistin-resistant bacteria

    Article • Infection and Drug Resistance, July 2019, Dove Medical Press

    Dr Mohamed El-Sayed Ahmed

  23. Plasmid-mediated colistin resistance gene mcr-1 in Escherichia coli and Klebsiella pneumoniae isolated from market retail fruits in Guangzhou, China

    Article • Infection and Drug Resistance, February 2019, Dove Medical Press

    Dr Mohamed El-Sayed Ahmed

  24. Antimicrobial resistance, virulence genes profiling and molecular relatedness of methicillin-resistant Staphylococcus aureus strains isolated from hospitalized patients in Guangdong Province, China

    Article • Infection and Drug Resistance, February 2019, Dove Medical Press

    Dr Mohamed El-Sayed Ahmed

  25. High Prevalence ofblaNDM-1Carbapenemase-Encoding Gene and 16S rRNAarmAMethyltransferase Gene among Acinetobacter baumannii Clinical Isolates in Egypt

    Article • Antimicrobial Agents and Chemotherapy, March 2015, ASM Journals

    Dr Mohamed El-Sayed Ahmed