Multidrug-Resistant Listeria Species Shows Abundance in Environmental Waters of a Key District Municipality in South Africa
Bibliographic Data
| ID | 15501629 |
|---|---|
| Authors | Liyabona Mpondo (0000-0002-6020-043X, University of Fort Hare, corresponding author), Kingsley Ehi Ebomah (0000-0002-8192-0428, University of Fort Hare), Anthony I Okoh (0000-0002-9770-085X, University of Fort Hare) |
| Year | 2021 |
| Volume | 18 |
| Issue | 2 |
| Pages | 481-481 |
| Publication date | 2021-01-08 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph18020481 |
| PMID | 33435627 |
| OpenAlex | W3119286453 |
| Language | EN |
| References cited | 45 |
The prevalence of bacteria with multidrug-resistance (MDR) is a significant threat to public health globally. Listeria spp. are naturally ubiquitous, with L. monocytogenes particularly being ranked as important foodborne disease-causing microorganisms. This study aimed to evaluate the incidence and determine the antimicrobial resistance (AMR) profiles of multidrug-resistant Listeria spp. (MDRL) isolated from different environmental samples (river and irrigation water) in the Sarah Baartman District Municipality (SBDM), Eastern Cape Province (ECP), South Africa. Molecular identification and characterization were carried out using polymerase chain reaction (PCR) and isolates that exhibited phenotypic resistance were further screened for relevant antimicrobial-resistant genes (ARGs). Findings revealed a total of 124 presumptive Listeria isolates; 69 were molecularly confirmed Listeria species. Out of the confirmed species, 41 isolates (59%) were classified as L. monocytogenes while 9 (13%) were classified as L. welshimeri . All Listeria spp. exhibited phenotypic resistance against ampicillin, penicillin, and trimethoprim-sulphamethoxazole and further screening revealed ARGs in the following proportions: sulI (71%), bla TEM (66%), tetA (63%), and bla CIT (33%). Results confirmed the occurrence of ARGs among Listeria inhabiting surface waters of ECP. The present study indicates that the river water samples collected from SBDM are highly contaminated with MDRL, hence, constituting a potential health risk
Ampicillin · Antibiotic resistance · Antibiotics · Bacteria · Biology · Gene · Listeria · Listeria monocytogenes · Multiple drug resistance · Multiplex polymerase chain reaction · Penicillin · Polymerase chain reaction · Sulfamethoxazole · Veterinary medicine · Essential Oils and Antimicrobial Activity · Listeria monocytogenes in Food Safety · Medicine · Salmonella and Campylobacter epidemiology · Microbiology
| Highly cited | No |
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