Author

Carla Novais

Universidade do PortoORCID 0000-0002-3826-6731Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Organism:human· 4 Assay:whole-genome sequencing· 4 Approach:experimental assay· 3 Approach:statistical model· 3 Research Focus:clustering· 1 Research Focus:database / resource· 1 Research Focus:differential expression· 1 Organism:E. coli· 1

Frequent Co-Authors

Ana R. FreitasiD· 5 shared Luísa Maria Sobreira Vieira PeixeiD· 5 shared Ana C. Almeida-SantosiD· 3 shared Ana P. TedimiD· 2 shared Inmaculada Gómez-SáncheziD· 2 shared Judith Guitart-MatasiD· 2 shared Miquel Sánchez−OsunaiD· 2 shared Oriol GaschiD· 2 shared

Activity by Year

2020-2026 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 39 mutual co-author links

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Curved chords = mutual co-authorship

5 shared papersMicrobiology

Ana R. FreitasORCID

Mutual co-authors in cluster

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5 papers

Recent·Most cited

MicrobiologybioRxivPreprintAug 28, 2026

Widespread occurrence of ampicillin-susceptible Enterococcus faecium and Enterococcus lactis clinical isolates with low MICs to cephalosporins from Spain and Portugal

Miquel Sánchez−Osuna, Inmaculada Gómez-Sánchez, Juan Carlos Vázquez-Ucha…·Òscar Q. Pich

The paper investigates the prevalence of ampicillin-susceptible Enterococcus faecium and E. lactis isolates with low cephalosporin MICs in Spain and Portugal, finding widespread occurrence and diverse genetic factors.

DOI 10.64898/2026.08.28.747786

humanexperimental assay

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MicrobiologybioRxivPreprintJun 2, 2026

Multihospital expansion of vancomycin-resistant Enterococcus faecium ST117-CT7799 and transmission of linear plasmids co-carrying vanA and linezolid resistance genes, Comunitat Valenciana, Spain (2022-2024)

Carlos Valiente-Mullor, Lidia Ruiz‐Roldán, Ana C. Almeida-Santos…·Fernando Gónzález‐Candelas

The paper characterizes the spread and resistance mechanisms of vancomycin-resistant Enterococcus faecium in Spanish hospitals, identifying a dominant lineage and plasmid-mediated resistance gene transmission.

DOI 10.64898/2026.06.01.729239

humanwhole-genome sequencing

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MicrobiologyAntimicrobial Agents and ChemotherapyPeer-reviewedMar 23, 2026

Single point mutations in global regulatory genes restore cephalosporin resistance in a low-MIC Enterococcus faecium natural isolate

Miquel Sánchez−Osuna, Paula Bierge, Inmaculada Gómez-Sánchez…·Òscar Q. Pich

DOI 10.1128/aac.01948-25

E. coliwhole-genome sequencing

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GenomicsApplied and Environmental MicrobiologyPeer-reviewedSep 16, 2024

Bacteriocin Distribution Patterns in Enterococcus faecium and Enterococcus lactis: Bioinformatic Analysis Using a Tailored Genomics Framework

Ana P. Tedim, Ana C. Almeida-Santos, Val F. Lanza…·from the ESCMID Study Group on Food- and Water-borne Infections (EFWISG)

The paper identifies bacteriocin distribution patterns in Enterococcus faecium and Enterococcus lactis genomes using a tailored database and reveals associations with antibiotic resistance and mobile genetic elements.

28 citations

humanwhole-genome sequencing

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GenomicsMicrobial GenomicsPeer-reviewedMar 9, 2020

Comparative genomics of global optrA-carrying Enterococcus faecalis uncovers common genetic features and a chromosomal hotspot for optrA acquisition

Ana R. Freitas, Ana P. Tedim, Carla Novais…·Luísa Maria Sobreira Vieira Peixe

The paper analyzes optrA-carrying Enterococcus faecalis genomes to identify common genetic features and a chromosomal hotspot for optrA acquisition across diverse hosts and regions.

61 citations

humanmouse

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