Evidence map›Paper›PMID 36494398›Full record

ArticleScientific reports2022

Whole genome sequencing reveals new links between spa t172/CC59 methicillin-resistant Staphylococcus aureus cases in low-endemicity region of Southwest Finland, 2007‒2016.

Jaakko Silvola, Kirsi Gröndahl-Yli-Hannuksela, Tiina Hirvioja, Kaisu Rantakokko-Jalava, Esa Rintala, Kari Auranen, Jenna Junnila, Harri Marttila, Laura Lindholm, Jaana Vuopio

Abstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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

10 authors.

Jaakko SilvolaInstitute of Biomedicine, University of Turku, Turku, Finland. japesil@utu.fi.
Kirsi Gröndahl-Yli-HannukselaInstitute of Biomedicine, University of Turku, Turku, Finland.
Tiina HirviojaDepartment of Hospital Hygiene & Infection Control, Turku University Hospital, Turku, Finland.
Kaisu Rantakokko-JalavaClinical Microbiology Laboratory, Turku University Hospital, Turku, Finland.
Esa RintalaDepartment of Hospital Hygiene & Infection Control, Turku University Hospital, Turku, Finland.
Kari AuranenDepartment of Mathematics and Statistics and Department of Clinical Medicine, University of Turku, Turku, Finland.
Jenna JunnilaInstitute of Biomedicine, University of Turku, Turku, Finland.
Harri MarttilaDepartment of Hospital Hygiene & Infection Control, Turku University Hospital, Turku, Finland.
Laura LindholmDepartment of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland.
Jaana VuopioInstitute of Biomedicine, University of Turku, Turku, Finland.

Funding

Competitive State Research Financing of the Expert Responsibility area of Turku University Hospital M3016Wellcome Trust 080840
6 · The paper itself

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) rates have remained relatively low in Finland. In Southwest Finland, however, annual MRSA incidence increased from 12 to 25/100,000 between 2007 and 2016 with spa t172 strain causing one fourth (237/983) of all cases. This provoked us to study the molecular epidemiology of t172-MRSA, aiming to better understand the transmission of this strain type. We combined epidemiological data and whole genome sequencing (WGS) of a set of 64 (27%, 64/237) t172-MRSA isolates covering 10 years. Isolates represented sporadic and index cases of all identified healthcare-associated outbreaks (HAOs) and family clusters (FCs). Among the included 62 isolates, core-genome MLST analysis revealed eight genomic clusters comprising 24 (38.7%) isolates and 38 (61.3%) non-clustered isolates. Cluster 1 comprised ten and the remaining seven clusters two isolates each, respectively. Two epidemiologically distinct HAOs were linked in cluster 1. FCs were involved in all clusters. All strains were associated with epidemic clonal complex CC59. We were able to confirm the spread of several successful t172-MRSA subclones in regional healthcare and the community. WGS complemented routine surveillance by revealing undetected links between t172-MRSA cases. Targeted, WGS-based typing could enhance MRSA surveillance without the need for routine WGS diagnostics.

Indexed as

Methicillin-Resistant Staphylococcus aureusStaphylococcal InfectionsHumansMolecular EpidemiologyMultilocus Sequence TypingWhole Genome Sequencing

Identifiers

PMID36494398
PMCPMC9734107

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