Evidence map›Paper›PMID 23530941›Full record

ArticleBMC infectious diseases2013

Enhanced surveillance of invasive listeriosis in the Lombardy region, Italy, in the years 2006-2010 reveals major clones and an increase in serotype 1/2a.

Caterina Mammina, Antonio Parisi, Anna Guaita, Aurora Aleo, Celestino Bonura, Antonino Nastasi, Mirella Pontello

Erratum issuedAbstract read
In one paragraph

Article in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Whole-genome sequencing ofJournal of medical microbiology · 2026
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  6. Virulence and Antibiotic Resistance Genes inFrontiers in microbiology · 2021
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  7. An Update Review on Listeria Infection in Pregnancy.Infection and drug resistance · 2021
    Review
  8. Review
  9. Population Structure of Non-ST6Microorganisms · 2020
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Frontiers in microbiology · 2018
    Article
  15. Article
  16. Article
  17. Article
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  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Caterina MamminaDepartment of Sciences for Health Promotion "G, D'Alessandro", University of Palermo, Palermo, Italy. caterina.mammina@unipa.it
Antonio Parisi
Anna Guaita
Aurora Aleo
Celestino Bonura
Antonino Nastasi
Mirella Pontello

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInvasive listeriosis is a rare, life-threatening foodborne disease. Lombardy, an Italian region accounting for 16% of the total population, reported 55% of all listeriosis cases in the years 2006-2010. The aim of our study was to provide a snapshot of listeriosis epidemiology in this region after the implementation of a voluntary laboratory-based surveillance system.

methodsWe characterized by serotyping, pulsed-field gel electrophoresis, multilocus sequence typing and detection of epidemic clone markers, 134 isolates from 132 listeriosis cases, including 15 pregnancy-related cases, occurring in the years 2006-2010 in Lombardy. Demographic and clinical characteristics of cases have also been described.

resultsThe mean age of non pregnancy-associated cases was 64.7 years, with 55.9% of cases being older than 65 years. Cases having no underlying medical conditions accounted for 11.6%. The all-cause fatality rate of 83 cases with a known survival outcome was 25.3%.Serotypes 1/2a and 4b comprised 52.2% and 38.8% of isolates, respectively. Seventy-three AscI pulsotypes and 25 sequence types assigned to 23 clonal complexes were recognized. Moreover, 53 (39.5%) isolates tested positive for the epidemic clone markers. Twelve molecular subtype clusters including at least three isolates were detected, with cluster 11 (1/2a/ST38) including 31 isolates identified during the entire study period. No outbreaks were notified to public health authorities during this period.

conclusionsThe findings of our study proved that epidemiology of listeriosis in Lombardy is characterized by a high prevalence of major clones and the increasing role of serotype 1/2a. Molecular subtyping is an essential tool in the epidemiology and surveillance of listeriosis. Rapid molecular cluster detection could alert about putative outbreaks, thus increasing the chance of detecting and inactivating routes of transmission.

Indexed as

AdolescentAdultAgedAged, 80 and overElectrophoresis, Gel, Pulsed-FieldFemaleHumansInfantInfant, NewbornItalyListeriaListeriosisMaleMiddle AgedMolecular EpidemiologyMultilocus Sequence Typing

Identifiers

PMID23530941
PMCPMC3616957

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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.