Results 1 to 10 of about 228,683 (172)

Microbiome analysis of Cystic Fibrosis sputum presents higher sensitivity than the conventional bacterial culture [PDF]

Brazilian Journal of Infectious Diseases
Background: Microbiological communities in the airway of Cystic Fibrosis (CF) patients may be associated with clinical conditions and bacterial exacerbation.
Fabiana Caroline Zempulski Volpato, Otávio von Ameln Lovison, Daiana de Lima-Morales, Evelyn Kern Almeida, Pabulo Henrique Rampelotto, Andreza Francisco Martins, Paulo José Cauduro Maróstica, Afonso Luís Barth   +7 more
doaj   +2 more sources

Increased rates of blaNDM in Pseudomonas aeruginosa in a tertiary care hospital in southern Brazil [PDF]

Brazilian Journal of Infectious Diseases
Carbapenem-Resistant Pseudomonas Aeruginosa (CRPA) is considered as one of the high priority pathogens by the World Health Organization. As CRPA carbapenemase producers have increased worldwide, the aim of this study was to evaluate the carbapenemase ...
Patricia Orlandi Barth, Dariane Castro Pereira, Camila Mörschbächer Wilhelm, Kellen Figueira Tragnago, Afonso Luís Barth   +4 more
doaj   +2 more sources

Use of IR Biotyper as a feasible methodology to type Klebsiella pneumoniae [PDF]

Microbiology Spectrum
Klebsiella pneumoniae is one of the most frequently reported healthcare-associated pathogens. The current gold standard approach to perform the epidemiological typing of these bacteria is Whole Genome Sequencing (WGS), which is an expensive and ...
Patricia Orlandi Barth, Camila Mörschbächer Wilhelm, Dariane Castro Pereira, Laura Czekster Antochevis, Andreza Francisco Martins, Afonso Luís Barth   +5 more
doaj   +2 more sources

Molecular Epidemiology of Methicillin-Resistant Staphylococcus aureus Causing Healthcare-Associated Bloodstream Infections in Brazil: Results from A Prospective Countrywide Multicenter Study [PDF]

Infectious Diseases and Therapy
Introduction The molecular characteristics of methicillin-resistant Staphylococcus aureus (MRSA) impact transmission, clinical presentation, and treatment.
Laura C. Antochevis, Letícia O. Sudbrack, Robson S. Leão, Luiz F. Abreu Guimarães, João Paulo Telles, Ândrea C. Souza, Maria Helena Rigatto, Verônica F. D. Rocha, André Afonso M. Coelho, Elisa T. Mendes, Lívia Kmetzsch, Heryk Motta, Afonso Luís Barth, MRSA-ASCENSION Study Group, Alexandre P. Zavascki   +14 more
doaj   +2 more sources

Unveiling the role of the upper respiratory tract microbiome in susceptibility and severity to COVID-19 [PDF]

Frontiers in Cellular and Infection Microbiology
It is argued that commensal bacteria in the upper respiratory tract (URT) protect against pathogen colonization and infection, including respiratory viruses. Given that the microbiome can mediate immune modulation, a link between the URT microbiome (URTM)
Otávio von Ameln Lovison, Otávio von Ameln Lovison, Otávio von Ameln Lovison, Fabiana Caroline Zempulski Volpato, Lorenzo Gómez Weber, Lorenzo Gómez Weber, Afonso Luis Barth, Adriana Simon Coitinho, Andreza Francisco Martins, Andreza Francisco Martins, Andreza Francisco Martins   +10 more
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Genomic Surveillance of SARS-CoV-2 Lineages Indicates Early Circulation of P.1 (Gamma) Variant of Concern in Southern Brazil

Microbiology Spectrum, 2022
The SARS-CoV-2 P.1 lineage emerged in Amazonas (AM), North Brazil and its evolution has been dynamically reported associated with increased transmissibility and/or immune evasion.
Priscila Lamb Wink, Rafaela Ramalho, Francielle Liz Monteiro, Fabiana Caroline Zempulski Volpato, Julia Biz Willig, Otávio von Ameln Lovison, Alexandre Prehn Zavascki, Afonso Luís Barth, Andreza Francisco Martins   +8 more
doaj   +1 more source

Validation of a MALDI-TOF MS Method for SARS-CoV-2 Detection on the Bruker Biotyper and Nasopharyngeal Swabs: A Brazil—UK Collaborative Study

Diagnostics, 2023
We developed a MALDI-TOF mass spectrometry method for the detection of the SARS-CoV-2 virus in saliva-gargle samples using Shimadzu MALDI-TOF mass spectrometers in the UK.
Otávio A. Lovison, Raminta Grigaitė, Fabiana C. Z. Volpato, Jason K. Iles, Jon Lacey, Fabiano Barreto, Sai R. Pandiri, Lisiane da Luz R. Balzan, Vlademir V. Cantarelli, Afonso Luis Barth, Ray K. Iles, Andreza F. Martins   +11 more
doaj   +1 more source

Evaluation of a rapid susceptibility test of polymyxin B by MALDI-TOF

Frontiers in Microbiology, 2022
IntroductionInfections caused by multidrug-resistant microorganisms have become increasingly common in hospital environments around the world.
Patricia Orlandi Barth, Patricia Orlandi Barth, Fabiana Caroline Zempulski Volpato, Fabiana Caroline Zempulski Volpato, Natália Kehl Moreira, Natália Kehl Moreira, Priscila Lamb Wink, Priscila Lamb Wink, Ândrea Celestino de Souza, Afonso Luís Barth, Afonso Luís Barth, Afonso Luís Barth   +11 more
doaj   +1 more source

Novel mutations in the resistome of a new sequence type (ST262) of clarithromycin resistant Mycobacterium abscessus subsp. massiliense

Journal of Global Antimicrobial Resistance, 2020
Objectives: The aim of this study was to evaluate the relationship between antimicrobial susceptibility and genotype of a Mycobacterium abscessus subsp. massiliense isolate obtained from the respiratory tract of a patient in southern Brazil. Methods: The
Maiara dos Santos Carneiro, Daiana de Lima-Morales, Marina Niada Crispim, Luciana de Souza Nunes, Afonso Luis Barth   +4 more
doaj   +1 more source

SARS-CoV-2 Variants of Concern: Presumptive Identification via Sanger Sequencing Analysis of the Receptor Binding Domain (RBD) Region of the S Gene

Diagnostics, 2023
Variants of concern (VOCs) of SARS-CoV-2 are viral strains that have mutations associated with increased transmissibility and/or increased virulence, and their main mutations are in the receptor binding domain (RBD) region of the viral spike.
Grazielle Motta Rodrigues, Fabiana Caroline Zempulski Volpato, Priscila Lamb Wink, Rodrigo Minuto Paiva, Afonso Luís Barth, Fernanda de-Paris   +5 more
doaj   +1 more source