scholarly journals Occurrence of multi-drug resistant Enterobacteriaceae in cultured Clarias gariepinus (African catfish) in Kano metropolis, Nigeria

2021 ◽  
Vol 19 (2) ◽  
pp. 106-111
Author(s):  
M.D. Usman ◽  
A.M. Wakawa ◽  
A. Musa ◽  
K.H. Ahmad ◽  
A. Isiaku

Multi-drug resistant Enterobacteriaceae were isolated from cultured African catfish (Clarias gariepinus) from ten different fish farms located in Kano Metropolis, Nigeria using conventional methods of bacterial isolation, phenotypic characterization and antimicrobial susceptibility test. This study seeks to document the occurrence of Enterobacteriaceae isolates in cultured African catfish from ten registered fish farms, determine possible resistance to some antimicrobials and the fish safety for human consumption. Isolation and identification of microorganisms were carried out based on the standard procedures and antimicrobial susceptibility to 8 commonly used antimicrobials were conducted using the Kirby-Bauer disc diffusion method. Out of the 400 fish liver sampled, 370 (92.5%) were positive for Enterobacteriaceae isolates, these included 277 (69.25%) E. coli, 13 (3.25%) Salmonella spp, 36 (9%) Klebsiella spp, 21 (5.25%) Proteus spp and 23 (5.75%) Enterobacter spp. The prevalence of the multi-drug resistance was 97.5% for E. coli, 100% for Salmonella spp, 100% for Klebsiella spp, 90.5% for Proteus spp and 82.6% for Enterobacter spp. This study establishes the presence of some Enterobacteriaceae and the development of multi-drug resistance by these microorganisms. More studies like molecular characterization need to be carried out to determine the resistant genes in these organisms, also to assess antimicrobial use among fish farmers and the drug residue levels in the edible tissues of cultured African catfish in Kano Metropolis, Nigeria.

Author(s):  
Mahmuda Akhter Akhi ◽  
Avijit Banik ◽  
Oshin Ghurnee ◽  
Nantu Chandra Das ◽  
Showmitro Nondi ◽  
...  

Fruits are highly nutritious, sources of vitamins, minerals, fibers etc. and these are part of our daily diet. However, during cultivation, harvesting, transportation, handling fruits get contaminated with pathogenic microorganisms which leads to severe problems to community. Owning to this point, in current research, bacteriological analysis was performed on Sofeda, Pineapple, Grape, Banana, Apple, Orange, Guava, papaya, Jujube and Starfruit. Total 50 samples were randomly collected from market and street vendors of Dhaka city. Higher numbers of rotten fruits were present in wholesale markets. 35 strains were isolated which included Salmonella spp., Acinetobacter spp., Klebsiella spp., Vibrio cholerae, Vibrio parahaemolyticus, Staphylocoous aureus and E. coli. They were identified using biochemical test and antibiogram for selective isolates. In case of drug resistance of isolates, majority exhibited resistance against Erythromycin, Vancomycin and Amoxycillin and showing sensitivity against Ciprofloxacin and Ceftriaxone. It was observed in the current study that 100% isolates were resistant against Erythromycin, followed by Amoxycillin 90.63% and vancomycin 86.25%, where only 35.27% isolates were resistant against Ciprofloxacin. In case of sensitivity 64.73% isolates were sensitive against Ciprofloxacin followed by Ceftriaxone 66.25%. 


2019 ◽  
Author(s):  
Jingzhi Yuan ◽  
Xiaoye Wang ◽  
Dali Shi ◽  
Qiang Ge ◽  
Xingxing Song ◽  
...  

Abstract Background The discovery of mcr-1-positive Escherichia coli (MCRPEC), a notable superbug, attracted great attention worldwide. Swine-origin multi-drug resistance MCRPEC is a potential threat to public health and safety. To date, few detailed studies regarding swine-origin MCRPEC in Guangxi, South China, have been reported. Results In this study, thirty-three MCRPEC harbored mcr-1 genes were identified from 142 E. coli strains isolated from swine droppings and entrails in Guangxi in 2018. All MCRPEC isolates were assigned to 8 unique STs, including ST10, ST224 and ST410, which overlapped with the human-origin MCRPEC. Additionally, a total of six plasmid replicon types (IncFI, IncHI1, IncY, IncN, IncI1 and IncX1) were found. Moreover, the drug susceptibility of the MCRPEC isolates was tested with 27 antimicrobial agents belonging to 17 antimicrobial categories that are usually used in hospitals. There were 19 extended spectrum beta lactamase (ESBL) E. coli and 12 carbapenem resistant E. coli among the 33 MCRPEC strains. Importantly, the MCRPEC showed a high rate of resistance against two broad-spectrum carbapenem antibiotics, imipenem and meropenem, which are forbidden in livestock production use. Three MCRPEC strains were further identified to be extensively drug-resistant (XDR), and other isolates were recognized as multi-drug-resistant (MDR). Meanwhile, to detect whether plasmid-carrying antimicrobial resistance genes coexisted with the mcr-1 gene in the MCRPEC isolates, a total of 22 plasmid-carrying antimicrobial resistance genes were tested for. The results showed that four ESBL genes and one pAmpC gene were identified. Eight of the MCRPEC isolates also contained the carbapenem gene blaNDM-5, which could cause untreatable infections. Moreover, ten non-lactamase genes were also detected. Conclusion This study indicated that swine-origin MCRPEC isolated in Guangxi seemed to have a high rate of resistance to both regular and final line of defense drugs as well as drug resistance genes, which pose a great threat to human public safety and health.


2020 ◽  
Vol 5 (3) ◽  
pp. 89
Author(s):  
Saranya K. Lakshmi ◽  
Hema N. Gowda ◽  
Anuradha K

Antibiotics play a vital role in prevention and treatment of various infections. But inappropriate antibiotic choice could lead to emergence of multi-drug resistance (MDR) among microorganisms. Since, the antibiotic susceptibility pattern of organisms could vary from place to place; forming a local prophylaxis and treatment protocol could hugely reduce this global burden. The primary objectives of the study were to observe the frequency of multi-drug resistant organisms causing Surgical Site Infections (SSIs) and to study the pattern of antibiotic usage for the prophylaxis and treatment of SSIs. A descriptive study was carried out in general surgical wards of KR hospital, Mysore for a period of 18 months (2015-2016). The relevant data was collected from the case sheets of patients who were diagnosed with SSI. Pus samples were collected, and culture-sensitivity was done. Collected data were analyzed using relevant statistical tests. A total of 263 study subjects including both males and females were enrolled in the study. Cefotaxime was the most common antibiotic used for pre-surgical prophylaxis (n=221). Out of 263 pus samples 92% were culture positive. The most common organisms causing SSI were E-coli-ESBL (n=73) and MRSA (n=44). About 95% of organisms showed multi-drug resistance. Imipenem, Gentamicin, Piperacillin-Tazobactum and Linezolid were the most common antibiotics used in the treatment of SSIs. The result of the study is alarming. Overall, there is great rise in the prevalence of MDR organisms causing SSIs. The hospital antibiotic policy should be revised in such a way to decrease the emergence of MDR microbes.


Author(s):  
Vu Truong Huynh Anh ◽  
Khue Tu Nguyen Hoang ◽  
Hai Chu Van ◽  
Ha Huynh Yen ◽  
◽  
...  

In this study, a total of 380 fresh seafood samples (fish, shrimp, squid) were collected randomly at conventional markets of districts in Ho Chi Minh city. Salmonella strains were detected by the traditional method (ISO 6579-1:2017) and conformed by PCR technique (TCVN 8342:2010), serotyping according to ISO/TR 6579-3:2014 and Kirby-Bauer methods evaluated antibiotic resistance's ability. As a result, 85 Salmonella strains were isolated, and the proportion of infection was 22,37% (85/380). The proportion of Salmonella strains that resisted 01 antibiotics was 85,88% (73/85), and 10,59% (09/85) accounted for that of strains that resisted 02 to 05 antibiotics. Also, strains representing resistance towards 06 to 11 antibiotics occupied 4,71% (04/85). Antimicrobial drugs resisted the most were tetracycline 43, 53% (37/85). In contrast, 98,82% (84/85) of Salmonella strains were sensitive to ceftazidime. The proportion of multi-drug resistance was 15,29% (13/85). The familiar combinations of antibiotic resistance were ampicillin, streptomycin, tetracycline, and trimethoprim/sulfamethoxazole (AM, STR, TE, SXT), with 46,15% (6/13). There were six distinguished serovars, including S. Kentucky (05 strains); S. Infantis (02 strains); S. Agona and S. Postdam (01 strain); S. Saintpaul, S. Braenderup (01 strain). 92.31% of serovar detected resistance genes (blaTEM, strA: 53.85%; blaSHV: 7.69%; tetA: 92.31%; tetB: 7.69% and sul1: 23.08%). Three serovars with genotype (blaTEM, strA, tetA, sul1) matched the antibiotic resistance phenotype (AM, STR, TE, SXT), namely S. Kentucky (02) and S. Saintpaul (01), the both isolated from fish samples.


2018 ◽  
Vol 69 (5) ◽  
pp. 1240-1243
Author(s):  
Manuela Arbune ◽  
Mioara Decusara ◽  
Luana Andreea Macovei ◽  
Aurelia Romila ◽  
Alina Viorica Iancu ◽  
...  

The aim of the present study was to characterize the antibiotic resistance profile of enterobacteriaceae strains isolated in Infectious Diseases Hospital Galati, Romania, during 2016, in order to guide the local antibiotic stewardship strategy. There are 597 biological samples with positive cultures for enterobacteriaceae, related to invasive and non-invasive infections. The main bacterial genus were E. coli 62%, Klebsiella spp 15%, Proteus spp 11% and Salmonella spp 6%. Over a half of isolated strains have one or more antibiotic resistance. The resistance level depends on bacterial genus, with highest level found among the rare isolates: Enterobacter spp, Citrobacter spp, Morganella spp and Serratia spp. The rate of MDR was 17.,6% for E. coli, 40.9% for Klebsiella spp and 50.7% for Proteus spp. while the rate of strains producing Extended Spectrum of Beta Lactamase are 7.2% for E. coli, 28.4% for Klebsiella spp and 12.3% for Proteus spp. The carbapenem resistant strains were found in 1.1% cases.


Author(s):  
Jai Sunder ◽  
T. Sujatha ◽  
S. Bhowmick ◽  
S.C. Mayuri ◽  
A.K. De ◽  
...  

Background: Transmission of antibiotic resistance from animal food chain to human through animal food-borne pathogens have led to increased public concern. Wider surveillance on prevalence of antibiotic resistance in E. coli will provide information on evolution of resistance in various geographical locations. The purpose of this study was to investigate the presence of antimicrobial resistance of E. coli isolates from poultry under various farming system in A and N Islands and resistance genes of tet, ctx-M and aac encoding the isolates. Methods: Isolates were obtained from cloacal swabs in poultry under various farming systems and tested against major antimicrobial derivatives to study multi drug resistance. The presence of genes associated with resistance to tetracycline (tet A), ESBL (CTX-M) and Gentamycin (aac(3)-IV) were determined by PCR. Result: A total of 126 cloacal samples were analysed out of which 31.38% of the E.coli isolates from poultry under various farming systems were producing extended spectrum beta-lactamases and were multiple antimicrobial resistant. Poultry birds of commercial farms showed higher resistance levels (37.5%) than organised farms (24.76%) and desi birds (31.88%). Results indicate a high level of multi-drug resistance is emerging even in desi birds. It is suggested that an antimicrobial resistance surveillance program is needed in A and N Islands in order to detect bacterial resistance among rural poultry production as the 80 percentage of total poultry population belong to desi birds.


Author(s):  
Sulochana Manandhar ◽  
Raphael M. Zellweger ◽  
Nhukesh Maharjan ◽  
Sabina Dongol ◽  
Krishna G. Prajapati ◽  
...  

Abstract Background Multi-drug resistance (MDR) and extensive-drug resistance (XDR) associated with extended-spectrum beta-lactamases (ESBLs) and carbapenemases in Gram-negative bacteria are global public health concerns. Data on circulating antimicrobial resistance (AMR) genes in Gram-negative bacteria and their correlation with MDR and ESBL phenotypes from Nepal is scarce. Methods A retrospective study was performed investigating the distribution of ESBL and carbapenemase genes and their potential association with ESBL and MDR phenotypes in E. coli, Klebsiella spp., Enterobacter spp. and Acinetobacter spp. isolated in a major tertiary hospital in Kathmandu, Nepal, between 2012 and 2018. Results During this period, the hospital isolated 719 E. coli, 532 Klebsiella spp., 520 Enterobacter spp. and 382 Acinetobacter spp.; 1955/2153 (90.1%) of isolates were MDR and half (1080/2153) were ESBL producers. Upon PCR amplification, blaTEM (1281/1771; 72%), blaCTXM-1 (930/1771; 53%) and blaCTXM-8 (419/1771; 24%) were the most prevalent ESBL genes in the enteric bacilli. BlaOXA and blaOXA-51 were the most common blaOXA family genes in the enteric bacilli (918/1771; 25%) and Acinetobacter spp. (218/382; 57%) respectively. Sixteen percent (342/2153) of all isolates and 20% (357/1771) of enteric bacilli harboured blaNDM-1 and blaKPC carbapenemase genes respectively. Of enteric bacilli, Enterobacter spp. was the most frequently positive for blaKPC gene (201/337; 60%). The presence of each blaCTX-M and blaOXA were significantly associated with non-susceptibility to third generation cephalosporins (OR 14.7, p < 0.001 and OR 2.3, p < 0.05, respectively).The presence of each blaTEM, blaCTXM and blaOXA family genes were significantly associated with ESBL positivity (OR 2.96, p < 0.001; OR 14.2, p < 0.001 and OR 1.3, p < 0.05 respectively) and being MDR (OR 1.96, p < 0.001; OR 5.9, p < 0.001 and OR 2.3, p < 0.001 respectively). Conclusions This study documents an alarming level of AMR with high prevalence of MDR ESBL- and carbapenemase-positive ESKAPE microorganisms in our clinical setting. These data suggest a scenario where the clinical management of infected patients is increasingly difficult and requires the use of last-resort antimicrobials, which in turn is likely to intensify the magnitude of global AMR crisis.


2014 ◽  
Vol 7 ◽  
pp. IDRT.S13820 ◽  
Author(s):  
Dinesh Kumar ◽  
Amit Kumar Singh ◽  
Mohammad Rashid Ali ◽  
Yogesh Chander

Background Extended spectrum β-lactamase (ESBL) producing Escherichia coli has tremendously increased worldwide and it is one of the most common causes of morbidity and mortality associated with hospital-acquired infections. This could be attributed to association of multi drug resistance in ESBL producing isolates. The present study was aimed to determine the antimicrobial sensitivity profile of ESBL producing E. coli isolates from various clinical samples. Materials and Methods Clinical samples, which consist of pus, urine, blood, cerebrospinal fluid (CSF), stool, sputum, swabs, and different body fluids, are included in the study. Samples were processed and identified as per routine laboratory protocol. ESBL screening and confirmation along with antimicrobial susceptibility test was done according to the Clinical Laboratory Standards Institute (CLSI) guidelines. Results Out of 180 third generation cephalosporins resistant E. coli, 100 (55.55%) isolates were ESBL producers showing a greater degree of resistance to antibiotics. Conclusion The prevalence of ESBL is increasing day by day in nearly every center of different countries and necessary steps to prevent the spread and emergence of resistance should be taken.


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