Evidence map›Paper›PMID 32921250›Full record

ArticleVirulence2020

Hypervirulent

Chao Liu, Pengcheng Du, Nan Xiao, Fansen Ji, Thomas A Russo, Jun Guo

Abstract readMulticenter Study
In one paragraph

Article in Virulence, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 2 pooled it
–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

88 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  17. Critical Care Management Considerations inCase reports in critical care · 2026
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28 more citing papers are in PubMed but not listed here.

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

6 authors.

Chao LiuDepartment of Infectious Diseases, Peking University Third Hospital , Beijing, China.
Pengcheng DuInstitute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, and Beijing Key Laboratory of Emerging Infectious Diseases , Beijing, China.
Nan XiaoDepartment of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University , Beijing, China.
Fansen JiDepartment of Basic Medical Sciences, School of Medicine, Tsinghua University , Beijing, China.
Thomas A RussoDepartment of Medicine, University at Buffalo, State University of New York , Buffalo, NY, USA.ORCID 0000-0003-4566-7442
Jun GuoDepartment of Pulmonary and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University , Beijing, China.

Funding

Development of a diagnostic test for hypervirulent Klebsiella pneumoniaeR21AI123558 · NIAID · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI RUSSO, THOMAS A · 2016 to 2017
$439k
NIAID NIH HHS R21 AI123558
6 · The paper itself

Abstract

objectivesHypervirulent Klebsiella pneumoniae(hvKp) is an increasingly important pathogen. Tracking its epidemiology and evolving antimicrobial resistance will facilitate care.

methodsA retrospective study was conducted in two hospitals. We collected the clinical data. Antimicrobial and virulence-associated phenotype and genotype, sequence type, and whole genome sequencing of selected strains were performed. HvKp was defined by the presence of some combination of

resultsOf 158 Kp clinical isolates, 79 (50%) were hvKp. Interestingly, 53/79 (67.1%) of hvKp strains were isolated from patients with nosocomial infection and 19/79 (24.1%) from patients with healthcare-associated infection, but only 7/79 (8.8%) from patients with community-acquired infections. Importantly, 27/53 (50.9%) and 4/19 (21.1%) of hvKp nosocomial and healthcare-associated isolates, respectively, were multi-drug-resistant (MDR); 25/53 (47.2%) and 5/19 (26.3%) expressed ESBLs and 14/53 (26.4%) and 2/19 (10.5%) were carbapenem-resistant. Of the hvKp isolates from community-acquired infection, 0/7 (0%) were MDR and 0/7 (0%) were carbapenem-resistant. Additionally, unique characteristics of nosocomial, healthcare-associated, and community-acquired hvKp infection were identified. In summary, 50% of K. pneumoniae infections were caused by hvKp. A concerning, novel finding from this report is a major shift in hvKp epidemiology. Ninety-one percent of hvKp infections were nosocomial or healthcare-associated, and 43.1% of these isolates were MDR.

conclusionsThese data suggest that hvKp may be replacing classical K. pneumoniae as the dominant nosocomial and healthcare-associated pathotype. Ongoing surveillance is needed to determine if this trend is occurring elsewhere.

Indexed as

AgedAged, 80 and overBeijingCommunity-Acquired InfectionsCross InfectionDNA, BacterialDrug Resistance, Multiple, BacterialFemaleGenotypeHospitalsHumansKlebsiella InfectionsKlebsiella pneumoniaeMaleMiddle AgedRetrospective StudiesDNA, BacterialVirulence Factorscarbapenemaseclinical characteristicsepidemiologyHypervirulent Klebsiella pneumoniaemulti drug resistancenosocomial infectionrisk factor

Identifiers

PMID32921250
PMCPMC7549996

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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.