Evidence map›Paper›PMID 36014964›Full record

ArticlePathogens (Basel, Switzerland)2022

Evidence of Virulent Multi-Drug Resistant and Biofilm-Forming

Christ-Donald Kaptchouang Tchatchouang, Justine Fri, Peter Kotsoana Montso, Giulia Amagliani, Giuditta Fiorella Schiavano, Madira Coutlyne Manganyi, Giulia Baldelli, Giorgio Brandi, Collins Njie Ateba

Open access · goldAbstract read
In one paragraph

Article in Pathogens (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% of its field
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Listeria monocytogenes: from a saprophytic to a cytosolic virulent pathogen.World journal of microbiology & biotechnology · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Life (Basel, Switzerland) · 2023
    Review
  10. Article
  11. Review
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

9 authors at 3 institutions in 2 countries.

Christ-Donald Kaptchouang TchatchouangFood Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa.ORCID 0000-0002-6792-9805
Justine FriFood Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa.ORCID 0000-0003-0338-5121
Peter Kotsoana MontsoFood Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa.ORCID 0000-0002-3344-1270
Giulia AmaglianiDepartment of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, PU, Italy.ORCID 0000-0002-0547-5107
Giuditta Fiorella SchiavanoDepartment of Humanities, University of Urbino Carlo Bo, 61029 Urbino, PU, Italy.ORCID 0000-0002-1427-3486
Madira Coutlyne ManganyiDepartment of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5117, South Africa.ORCID 0000-0002-0209-5547
Giulia BaldelliDepartment of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, PU, Italy.ORCID 0000-0001-8254-2994
Giorgio BrandiDepartment of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, PU, Italy.
Collins Njie AtebaFood Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa.ORCID 0000-0003-1230-5138
North-West University · ZAUniversity of Urbino · ITWalter Sisulu University · ZA

Funding

North-West University NWU BURSARY
6 · The paper itself

Abstract

Listeriosis is a foodborne disease caused by Listeria monocytogenes species and is known to cause severe complications, particularly in pregnant women, young children, the elderly, and immunocompromised individuals. The aim of this study was to investigate the presence of Listeria species in food and water using both biochemical and species-specific PCR analysis. L. monocytogenes isolates were further screened for the presence of various antibiotic resistance, virulence, and biofilm-forming determinants profiles using phenotypic and genotypic assays. A total of 207 samples (composed of meat, milk, vegetables, and water) were collected and analyzed for presence of L. monocytogenes using species specific PCR analysis. Out of 267 presumptive isolates, 53 (19.85%) were confirmed as the Listeria species, and these comprised 26 L. monocytogenes, 3 L. innocua, 2 L. welshimeri, and 1 L. thailandensis. The remaining 21 Listeria species were classified as uncultured Listeria, based on 16SrRNA sequence analysis results. A large proportion (76% to 100%) of the L. monocytogenes were resistant to erythromycin (76%), clindamycin (100%), gentamicin (100%), tetracycline (100%), novobiocin (100%), oxacillin (100%), nalidixic acid (100%), and kanamycin (100%). The isolates revealed various multi-drug resistant (MDR) phenotypes, with E-DA-GM-T-NO-OX-NA-K being the most predominant MDR phenotypes observed in the L. monocytogenes isolates. The virulence genes prfA, hlyA, actA, and plcB were detected in 100%, 68%, 56%, and 20% of the isolates, respectively. In addition, L. monocytogenes isolates were capable of forming strong biofilm at 4 °C (%) after 24 to 72 h incubation periods, moderate for 8% isolates at 48 h and 20% at 72 h (p < 0.05). Moreover, at 25 °C and 37 °C, small proportions of the isolates displayed moderate (8−20%) biofilm formation after 48 and 72 h incubation periods. Biofilm formation genes flaA and luxS were detected in 72% and 56% of the isolates, respectively. These findings suggest that proper hygiene measures must be enforced along the food chain to ensure food safety.

Indexed as

biofilm formationfood safetyL. monocytogenesmulti-drug resistancevirulence

Identifiers

PMID36014964
PMCPMC9416180
OpenAlexW4288081347

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.