Evidence map›Paper›PMID 39644415›Full record

ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2025

Genetic diversity, drug resistance, and biofilm formation in Klebsiella pneumoniae associated with nosocomial infection in Pelotas, RS, Brazil.

Daniela R Wozeak, Isabel L Pereira, Thayná L Cardoso, Amilton C P S Neto, Daiane D Hartwig

Abstract read
In one paragraph

Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Daniela R WozeakPrograma de Pós-Graduação Em Biotecnologia (PPGB), Universidade Federal de Pelotas, UFPel, Pelotas, RS, Brazil.ORCID http://orcid.org/0000-0003-1018-3210
Isabel L PereiraPrograma de Pós-Graduação Em Biotecnologia (PPGB), Universidade Federal de Pelotas, UFPel, Pelotas, RS, Brazil.ORCID http://orcid.org/0000-0002-5440-0953
Thayná L CardosoPrograma de Pós-Graduação Em Biotecnologia (PPGB), Universidade Federal de Pelotas, UFPel, Pelotas, RS, Brazil.ORCID http://orcid.org/0000-0001-6095-4779
Amilton C P S NetoPrograma de Pós-Graduação Em Microbiologia E Parasitologia (PPGMPar), Universidade Federal de Pelotas, UFPel, Pelotas, RS, Brazil.ORCID http://orcid.org/0000-0003-2003-4980
Daiane D HartwigPrograma de Pós-Graduação Em Biotecnologia (PPGB), Universidade Federal de Pelotas, UFPel, Pelotas, RS, Brazil. daianehartwig@gmail.com.ORCID http://orcid.org/0000-0003-3604-0832

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Antibiotic resistance and the potential persistence of Klebsiella pneumoniae strains in hospital environments is an important challenge for human medicine. This research aims to detect resistance to antibiotics, biofilm formation, and the genetic pattern among clinical isolates associated with nosocomial infection obtained from a university hospital in the city of Pelotas, RS, Brazil. Twenty-eight isolates were identified at the species level by polymerase chain reaction (PCR) and were characterized regarding the profile of biofilm formation and antibiotic resistance. The genetic relationship was determined through pulsed-field gel electrophoresis (PFGE). The antibiotic resistance profile was made following the standards established by CLSI. All clinical isolates included in this study were confirmed as belonging to the species K. pneumoniae, 96.42% were considered strong biofilm formers and all were positive in the Congo Red agar (CRA) test. Thus, 64.29% of isolates were classified as multidrug-resistant (MDR), 25% as extensively drug-resistant (XDR), and 7.14% as pandrug-resistant (PDR). PFGE fingerprint analysis revealed 18 clones and of these, 15 have a unique pattern and another three were groups with patterns > 80% similarity. The clinical isolates used were collected over two years and revealed a genetic relationship. The same clone was identified in different types of samples and different years, demonstrating the permanence of the strain in the hospital environment. Our results reaffirm the need for greater measures of control and disinfection within the hospital environment, and the priority of therapeutic measures to contain the propagation of K. pneumoniae.

Indexed as

BiofilmsCross InfectionDrug Resistance, BacterialGenetic VariationKlebsiella InfectionsKlebsiella pneumoniaeAnti-Bacterial AgentsBrazilDrug Resistance, Multiple, BacterialElectrophoresis, Gel, Pulsed-FieldHumansMicrobial Sensitivity TestsAnti-Bacterial AgentsAntibacterial resistanceBiofilmK. pneumoniaeNosocomial infectionPFGE

Identifiers

PMID39644415
PMCPMC11885196

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.