Publications by authors named "Alexandra Alexandrova"

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Bacterial Profile, Molecular Serotyping, and Key Genetic Determinants for Adhesion, Immune Evasion, and Tissue Spread Among Bulgarian Children with Acute Otitis Media.
Alexandra S Alexandrova, Vasil S Boyanov, Raina T Gergova

Genes (Basel)· December 2025

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Genetic Determinants and Clonal Composition of Levofloxacin-Resistant Isolates from Bulgaria.
Vasil S Boyanov, Alexandra S Alexandrova, Raina T Gergova

Antibiotics (Basel)· November 2025

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Population Genetic Structure of Invasive and Non-Invasive Isolates After Fifteen Years of Routine PCV10 Vaccination in Bulgaria.
Alexandra S Alexandrova, Vasil S Boyanov, Kalina Y Mihova, Preslava M Hristova, Hristina Y Hitkova

Int J Mol Sci· September 2025

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Molecular Characterization of Isolates Recovered from Hospitalized Patients During the Years 2023-2024.
Adile A Muhtarova, Vasil S Boyanov, Alexandra S Alexandrova, Raina T Gergova

Microorganisms· September 2025

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Genetic Mechanisms of Antimicrobial Non-Susceptibility to Novel Fluoroquinolone Delafloxacin Among Bulgarian Clinical Isolates of .
Vasil Boyanov, Alexandra Alexandrova, Raina Gergova

Curr Issues Mol Biol· June 2025

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Pediatric Case of Facial Nerve Palsy as a Complication of Acute Otitis Media Caused by Non-typeable Haemophilus Influenza.
Milena Mitkova, Julide Kasaboglu, Silvia Valcheva, Raina Gergova, Diana Popova, Alexandra Alexandrova

Cureus· January 2025

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Antibiotic Resistance and Serotypes Distribution in Bulgarian Clinical Isolates During the Years of 2021-2024.
Vasil S Boyanov, Alexandra S Alexandrova, Preslava M Hristova, Hristina Y Hitkova, Raina T Gergova

Pol J Microbiol· December 2024

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Phylogenetic Lineages and Diseases Associated with Isolates Recovered from Bulgarian Patients.
Alexandra S Alexandrova, Vasil S Boyanov, Kalina Y Mihova, Raina T Gergova

Int J Mol Sci· September 2024

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A Review of the Impact of Streptococcal Infections and Antimicrobial Resistance on Human Health.
Raina Gergova, Vasil Boyanov, Adile Muhtarova, Alexandra Alexandrova

Antibiotics (Basel)· April 2024

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Pasteurella canis soft tissue infection after a cat bite - A case report.
Hristina Y Hitkova, Preslava M Hristova, Raina T Gergova, Alexandra S Alexandrova

IDCases· April 2024

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Molecular epidemiology and antimicrobial resistance of Haemophilus influenzae isolates from otitis media in Bulgaria.
Alexandra Sashova Alexandrova, Ivo Nikolaev Sirakov, Lena Petrova Setchanova, Kalina Ionkova Mihova, Daniela Rosenova Pencheva

Acta Microbiol Immunol Hung· December 2023

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Catheter-Related Bloodstream Infection in Hemodialysis Patient due to .
Preslava M Hristova, Alexandra S Alexandrova, Martin Lucanov, Hristina Y Hitkova, Biser Kirilov Borisov

Case Rep Nephrol Dial· September 2023

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Molecular Epidemiology of Bulgarian Clinically Significant Isolates.
Raina Gergova, Virna-Maria Tsitou, Svetoslav G Dimov, Ivanka Gergova, Alexandra Alexandrova

Pol J Microbiol· June 2023

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Pediatric case of septic arthritis due to Streptococcus pneumoniae serotype 19A.
Preslava M Hristova, Hristina Y Hitkova, Nikolay K Balgaranov, Raina Т Gergova, Alexandra S Alexandrova

Braz J Infect Dis· March 2023

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Gut colonization with vancomicyn-resistant enterococci among patients with hematologic malignancies.
Preslava Mihaylova Hristova, Vladislav Milkov Nankov, Ivaylo Georgiev Hristov, Stefan Venelinov Trifonov, Alexandra Sashova Alexandrova

Gut Pathog· March 2023

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Cherenkov Radiation in Optical Fibres as a Versatile Machine Protection System in Particle Accelerators.
Joseph Wolfenden, Alexandra S Alexandrova, Frank Jackson, Storm Mathisen, Geoffrey Morris

Sensors (Basel)· February 2023

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Association of pili with widespread multidrug-resistant genetic lineages of non-invasive pediatric Streptococcus pneumoniae isolates.
Alexandra Sashova Alexandrova, Daniela Rosenova Pencheva, Lena Petrova Setchanova, Raina Tsvetanova Gergova

Acta Microbiol Immunol Hung· September 2022

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Clonal Distribution, Antimicrobial Resistance, and Pilus Islets in S. pneumoniae Isolates from PCV10-Vaccinated Children with Suppurative AOM in Bulgaria (2015‒2020).
Alexandra Sashova Alexandrova, Daniela Rosenova Pencheva, Ivan Gergov Mitov, Lena Petrova Setchanova

Jpn J Infect Dis· January 2022

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Phenotypic and genotypic characterization of serogroup 6 Streptococcus pneumoniae isolates collected during 10-valent pneumococcal conjugate vaccine era in Bulgaria.
Alexandra Sashova Alexandrova, Lena Petrova Setchanova, Daniela Rosenova Pencheva, Ivan Gergov Mitov

Acta Microbiol Immunol Hung· June 2020

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Serotype changes and antimicrobial nonsusceptibility rates of invasive and non-invasive Streptococcus pneumoniae isolates after implementation of 10-valent pneumococcal nontypeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) in Bulgaria.
Lena Setchanova, Marianna Murdjeva, Iglika Stancheva, Alexandra Alexandrova, Maria Sredkova

Braz J Infect Dis· August 2017

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Dominance of multidrug-resistant Denmark(14)-32 (ST230) clone among Streptococcus pneumoniae serotype 19A isolates causing pneumococcal disease in Bulgaria from 1992 to 2013.
Lena Petrova Setchanova, Alexandra Alexandrova, Daniela Dacheva, Ivan Mitov, Radka Kaneva

Microb Drug Resist· February 2015

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Microbiological characterization of Streptococcus pneumoniae and non-typeable Haemophilus influenzae isolates as primary causes of acute otitis media in Bulgarian children before the introduction of conjugate vaccines.
Lena P Setchanova, Tomislav Kostyanev, Alexandra B Alexandrova, Ivan G Mitov, Dimitar Nashev

Ann Clin Microbiol Antimicrob· March 2013

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