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Nelson Frazão

Horizontal gene transfer overrides mutation in Escherichia coli colonizing the mammalian gut
2019 · Nelson Frazão, Ana Sousa, et al. · Proceedings of the National Academy of Sciences · 166
Assessment of Band-Based Similarity Coefficients for Automatic Type and Subtype Classification of Microbial Isolates Analyzed by Pulsed-Field Gel Electrophoresis
2005 · J. A. Carriço, F. R. Pinto, et al. · Journal of Clinical Microbiology · 119
Changes in pneumococcal serotypes and antibiotypes carried by vaccinated and unvaccinated day-care centre attendees in Portugal, a country with widespread use of the seven-valent pneumococcal conjugate vaccine
2009 · R. Sá-Leão, S. Nunes, et al. · Clinical Microbiology and Infection · 115
Effect of the Seven-Valent Conjugate Pneumococcal Vaccine on Carriage and Drug Resistance of Streptococcus pneumoniae in Healthy Children Attending Day-Care Centers in Lisbon
2005 · Nelson Frazão, António Brito-Avô, et al. · The Pediatric Infectious Disease Journal · 113
Analysis of Invasiveness of Pneumococcal Serotypes and Clones Circulating in Portugal before Widespread Use of Conjugate Vaccines Reveals Heterogeneous Behavior of Clones Expressing the Same Serotype
2011 · Raquel Sá-Leão, Francisco Pinto, et al. · Journal of Clinical Microbiology · 111
Two modes of evolution shape bacterial strain diversity in the mammalian gut for thousands of generations
2022 · N. Frazão, A. Konrad, et al. · Nature Communications · 58
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Identification, prevalence and population structure of non-typable Streptococcus pneumoniae in carriage samples isolated from preschoolers attending day-care centres
2006 · Raquel Sá-Leão, Alexandra S. Simões, et al. · Microbiology · 50
Evolution of commensal bacteria in the intestinal tract of mice
2017 · Ana Sousa, Nelson Frazão, et al. · Current Opinion in Microbiology · 29
Natural History of Drug-Resistant Clones of Streptococcuspneumoniae Colonizing Healthy Children in Portugal
2005 · R. Mato, I. Santos Sanches, et al. · Microbial Drug Resistance · 29
Properties of Novel International Drug-Resistant Pneumococcal Clones Identified in Day-Care Centers of Lisbon, Portugal
2005 · Natacha G. Sousa, Raquel Sá-Leão, et al. · Journal of Clinical Microbiology · 26
In Vivo Capsular Switch in Streptococcus pneumoniae – Analysis by Whole Genome Sequencing
2012 · Fen Z. Hu, Rory Eutsey, et al. · PLoS ONE · 24
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DNA Breaks-Mediated Fitness Cost Reveals RNase HI as a New Target for Selectively Eliminating Antibiotic-Resistant Bacteria
2021 · Roberto Balbontín, Nelson Frazão, et al. · Molecular Biology and Evolution · 17
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Virulence Potential and Genome-Wide Characterization of Drug Resistant Streptococcus pneumoniae Clones Selected In Vivo by the 7-Valent Pneumococcal Conjugate Vaccine
2013 · Nelson Frazão, N. Luisa Hiller, et al. · PLoS ONE · 14
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Impact of a single dose of the 7-valent pneumococcal conjugate vaccine on colonization
2010 · Nelson Frazão, Raquel Sá-Leão, et al. · Vaccine · 14
Mutation accumulation and horizontal gene transfer inEscherichia colicolonizing the gut of old mice
2020 · Hugo C. Barreto, Nelson Frazão, et al. · Communicative & Integrative Biology · 12
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Shared Evolutionary Path in Social Microbiomes
2023 · Nelson Frazão, Isabel Gordo · Molecular Biology and Evolution · 9
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Evolution of Escherichia coli strains under competent or compromised adaptive immunity
2025 · Camille Ameline, Elsa Seixas, et al. · PLoS Pathogens · 5
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Ability of Antibiotic-Resistant Nonvaccine-Type Pneumococcal Clones to Cause Otitis Media in an Infant Mouse Model of Pneumococcal–Influenza Virus Coinfection
2015 · Nelson Frazão, Peter Hermans, et al. · Microbial Drug Resistance · 4
Clonal interference and genomic repair during strain coexistence in the gut
2025 · Nelson Frazão, Elsa Seixas, et al. · PLoS Genetics · 3
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Massive lateral gene transfer under strain coexistence in the gut
2023 · N. Frazão, E. Seixas, et al. · bioRxiv (Cold Spring Harbor Laboratory) · 3
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Ecotype formation and prophage domestication during gut bacterial evolution
2023 · Nelson Frazão, Isabel Gordo · BioEssays · 2
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Pervasive bacterial and prophage hybridization during chronic gut inflammation
2026 · Marta Lourenço, Elsa Seixas, et al. · bioRxiv (Cold Spring Harbor Laboratory)
Review of: "Evolution of new variants of SARS-CoV-2 during the pandemic: mutation-limited or selection-limited?"
2023 · Nelson Frazão · Qeios
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Massive shift in the pneumococcal nasopharyngeal flora after the 7-valent conjugate vaccine: epidemiological studies and testing pathogenic potential in animal models
2010 · Nelson Frazão · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
Works count: 24
Citation count: 923
H-index: 14
I10-index: 15
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