Multi-drug resistant pathogenic Listeria monocytogenes in surface water and soil samples of Dhaka city

Abstract

Listeria monocytogenes, the causative agent of human listeriosis is widely distributed in nature and a major threat to human health. Aiming to investigate the environmental distribution of this pathogen in Bangladesh, the current study conducted an initial investigation on 30 soil samples and 20 surface water samples for the presence of the pathogenic Listeria monocytogenes. Based on cultural, morphological, biochemical tests and presence of the virulent gene hly, 7 (14%) Listeria monocytogenes were obtained of which, surface water samples contained four Listeria monocytogenes (15%) while, three Listeria spp. (13.33%) were isolated from soil samples. Antibiotic resistance profile of the Listeria isolates showed that 100% isolates were resistant to erythromycin and resistance to oxacillin, ampicillin, sulphamethoxazole-trimethoprim and penicillin was 71%, 57%, 43% and 43% respectively. 71% Listeira monocytogenes isolates were sensitive to vancomycin and 100% sensitivity was observed to imipenem. This study shows that multi-drug resistant pathogenic Listeria monocytogenes is widely spread in soil and water samples in Dhaka and imposes great risk to public health.
 Bangladesh J Microbiol, Volume 33, Number 1-2, June-Dec 2016, pp 39-42

Occurrence of Multidrug-Resistant Listeria monocytogenes in Environmental Waters: A Menace of Environmental and Public Health Concern

“…Contrary to our report, Manjur et al (2018) reported a high resistance of Lm from surface water in Bangladesh against ampicillin, trimethoprim-sulfamethoxazole, and penicillin and 100% resistance against erythromycin. A higher resistance against tetracycline (a class of oxytetracycline) was documented by Rodas-Suarez et al (2006).…”

“…Susceptibilities >50% were observed to other antibiotics tested ranging from 52.63% (cefotetan) to trimethoprim-sulfamethoxazole (98.25%) except for erythromycin (26.32%), sulfamethoxazole (35.09%), streptomycin (38.60%), oxytetracycline (45.61%), and amoxicillin (49.12%). Susceptibilities to imipenem and vancomycin in our study were lower compared to the report of Manjur et al (2018). Lm isolates showed varying percentages of resistance against all antibiotics tested except ampicillin for which no resistance was recorded similar to the report by Keet and Rip, (2021).…”

Multidrug-Resistant Listeria Species Shows Abundance in Environmental Waters of a Key District Municipality in South Africa

“…Furthermore, the bacterium has also been isolated from water samples collected from the point of sewage discharge (into a river) in Europe [ 53 ]. The study of Manjur et al [ 54 ] carried out in Bangladesh also investigated the distribution of Listeria spp. confirming the occurrence of the microorganisms in soil and surface water samples.…”

First Report on Listeria Monocytogenes Detection in Ready-to-Eat Chicken Products in Bangladesh: A Glimpse into Their Antibiotic Resistance and Virulence Genes

“…In Bangladesh, for instance, incidence rate of listeriosis is unknown and several factors can be attributed to it: lack of public awareness, overwhelmed medical sectors with other common diseases and underreporting of cases (Islam et al, 2016). Previously, there have been a few studies in Bangladesh addressing the incidence of Listeria in dairy food products and environment (Manjur et al, 2018), cattle farm environment (Shourav et al, 2020) and raw beef, chicken and chevon (Islam et al, 2016). To the best of our knowledge, this is the first study investigating the prevalence of multi-drug resistant pathogenic L. monocytogenes in RTE meat products in Bangladesh.…”