Please use this identifier to cite or link to this item:
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Enduring pathogenicity of African strains of Salmonella on plastics and glass in simulated peri-urban environmental waste piles
Author(s): Ormsby, Michael J
White, Hannah L.
Metcalf, Rebecca
Oliver, David M
Feasey, Nicholas A
Quilliam, Richard S
Contact Email:
Keywords: Biofilm
Environmental pollution
Plastic pollution
Public health
Waste management
Issue Date: 5-Jan-2024
Date Deposited: 25-Sep-2023
Citation: Ormsby MJ, White HL, Metcalf R, Oliver DM, Feasey NA & Quilliam RS (2024) Enduring pathogenicity of African strains of Salmonella on plastics and glass in simulated peri-urban environmental waste piles. <i>Journal of Hazardous Materials</i>, 461, p. 132439.
Abstract: In low- and middle-income countries, plastic has become a major constituent of landfills and urban dump sites. Environmental plastic pollution can also provide a novel surface for the formation of microbial biofilm, which often includes pathogenic bacteria and viruses. Here, under conditions simulating a peri-urban waste pile typical of an African informal settlement, we aimed to determine if pathogenic Salmonella spp. can retain their virulence following a prolonged period of desiccation on the surfaces of environmental plastic and glass. We show that clinically (and environmentally) relevant strains of Salmonella including S. Enteritidis, S. Typhimurium and S. Typhi can persist on plastic and glass for at least 28-days and that temperature (which increases with the depth of an urban waste pile) is a key determinant of this survival. All three strains of Salmonella retained their pathogenicity (determined by using a Galleria mellonella model of infection) following their recovery from the plastisphere indicating that plastics in the environment can act as reservoirs for human pathogens and could facilitate their persistence for extended periods of time. Pathogens colonising environmental plastic waste therefore pose a heightened public health risk, particularly in areas where people are frequently exposed to plastic pollution.
DOI Link: 10.1016/j.jhazmat.2023.132439
Rights: This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Licence URL(s):

Files in This Item:
File Description SizeFormat 
Enduring pathogenicity of African strains of Salmonella.pdfFulltext - Published Version5.06 MBAdobe PDFView/Open

This item is protected by original copyright

A file in this item is licensed under a Creative Commons License Creative Commons

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved

If you believe that any material held in STORRE infringes copyright, please contact providing details and we will remove the Work from public display in STORRE and investigate your claim.