Maria A. Orellana

Madrid, MD, Spain

Last Updated: 09/26/2026

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Found 58 publications

Genomic and evolutionary insights into a novel Neisseria meningitidis genogroup W clonal complex 11 variant with dual resistance to penicillin and azithromycin in Spain.

Genomic and evolutionary insights into a novel Neisseria meningitidis genogroup W clonal complex 11 variant with dual resistance to penicillin and azithromycin in Spain.

Journal: Microbial genomics

Published: May 12, 2026

Genomic characterization of invasive Neisseria meningitidis in Spain (2011/12-2022/23): expansion of clonal complex 213 and the potential threat to 4CMenB vaccine strain coverage.

Genomic characterization of invasive Neisseria meningitidis in Spain (2011/12-2022/23): expansion of clonal complex 213 and the potential threat to 4CMenB vaccine strain coverage.

Journal: Emerging microbes & infections

Published: March 19, 2025

Dalbavancin as sequential therapy in infective endocarditis: Real-life experience in elder and comorbid patients.

Dalbavancin as sequential therapy in infective endocarditis: Real-life experience in elder and comorbid patients.

Journal: Enfermedades infecciosas y microbiologia clinica (English ed.)

Published: February 06, 2024

Pseudomonas aeruginosa bloodstream infections in children and adolescents: risk factors associated with carbapenem resistance and mortality.

Pseudomonas aeruginosa bloodstream infections in children and adolescents: risk factors associated with carbapenem resistance and mortality.

Journal: The Journal of hospital infection

Published: January 06, 2024

Assessment of risk-adjusted mortality ratio (RAMR) in bloodstream infections using all-patient refined diagnosis-related groups (APR-DRGs).

Assessment of risk-adjusted mortality ratio (RAMR) in bloodstream infections using all-patient refined diagnosis-related groups (APR-DRGs).

Journal: The Journal of antimicrobial chemotherapy

Published: November 08, 2023

Bacteremia in Patients with Solid Organ Cancer: Insights into Epidemiology and Antibiotic Consumption.

Bacteremia in Patients with Solid Organ Cancer: Insights into Epidemiology and Antibiotic Consumption.

Journal: Cancers

Published: October 23, 2023

Evaluation of the effectiveness and safety of oral vancomycin versus placebo in the prevention of recurrence of Clostridioides difficile infection in patients under systemic antibiotic therapy: a phase III, randomised, double-blind clinical trial.

Evaluation of the effectiveness and safety of oral vancomycin versus placebo in the prevention of recurrence of Clostridioides difficile infection in patients under systemic antibiotic therapy: a phase III, randomised, double-blind clinical trial.

Journal: BMJ open

Published: September 14, 2023

Predictive value of fecal calprotectin and lactoferrin levels for negative outcomes in Clostridioides difficile infection.

Predictive value of fecal calprotectin and lactoferrin levels for negative outcomes in Clostridioides difficile infection.

Journal: European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology

Published: April 27, 2023

Antibiotic resistance in bloodstream isolates from high-complexity paediatric units in Madrid, Spain: 2013-2021.

Antibiotic resistance in bloodstream isolates from high-complexity paediatric units in Madrid, Spain: 2013-2021.

Journal: The Journal of hospital infection

Published: March 20, 2023

PACTA-Ped: Antimicrobial stewardship programme in a tertiary care hospital in Spain.

PACTA-Ped: Antimicrobial stewardship programme in a tertiary care hospital in Spain.

Journal: Anales de pediatria

Published: January 26, 2023

Bacteremia due to Leuconostoc species: A 13-year single-center case series.

Bacteremia due to Leuconostoc species: A 13-year single-center case series.

Journal: Enfermedades infecciosas y microbiologia clinica (English ed.)

Published: October 17, 2022

Genomic Analysis of Ceftazidime/Avibactam-Resistant GES-Producing Sequence Type 235 Pseudomonas aeruginosa Isolates.

Genomic Analysis of Ceftazidime/Avibactam-Resistant GES-Producing Sequence Type 235 Pseudomonas aeruginosa Isolates.

Journal: Antibiotics (Basel, Switzerland)

Published: June 01, 2022

Showing 1-12 of 58

Last Updated: 09/26/2026