Day-old chicks from 3 hatcheries were placed on bedding paper and brought to a commercial broiler farm between January and July 2016. Sixty-six samples of the paper, which were stained with meconium droppings of the chicks, were collected and examined for isolation of cephalosporin-resistant Enterobacteriaceae. Cefotaxime (CTX)-resistant Klebsiella pneumoniae (1 isolate) and Enterobacter cloaca...

The blaESBL and blaAmpC genes in Enterobacteriaceae are spread by plasmid-mediated integrons, insertion sequences, and transposons, some of which are homologous in bacteria from food animals, foods, and humans. These genes have been frequently identified in Escherichia coli and Salmonella from food animals, the most common being blaCTX-M-1, blaCTX-M-14, and blaCMY-2. Identification of risk fact...

In gram-negative pathogens, extended-spectrum beta-lactamases (ESBLs) confer resistance to penicillins, cephalosporins (including extended-spectrum cephalosporins), and aztreonam, but not to cephamycins and carbapenems, and are inhibited by beta-lactamase inhibitors (8). Recently, cefotaximases have become the most prevalent ESBLs worldwide (7) and have also been detected in animals (see, for i...

The aim of this study was to detect the presence carbapenem resistant Escherichia coli (E. coli) in cattle and pigs. Altogether, 100 samples were collected, 50 each from pigs including mastitic milk faecal healthy as well diarrhoeic slaughter specimens Bacteria isolated antibiotic sensitivity test carried out. Eight isolates E. obtained 15 phenotypic resistance patterns against carbapenems (ert...

Of 59 clinical isolates of Enterobacter cloacae from a teaching hospital in Sichuan, China, 18 isolates were shown to be resistant to oxyimino cephalosporins and aztreonam. Enterobacterial repetitive consensus PCR revealed that these isolates comprised 7 distinct genotypes. The presence of plasmids in the 18 clinical isolates was revealed by conjugational transfer of plasmids from E. cloacae to...

Despite of a high abundance antibiotics, heavy metals, and organic matters detected in the Saigon River Ho Chi Minh City, level spread antibiotic resistance genes this river are poorly understood. In study, total 10 (ARGs), including conferring to aminoglycosides (aac(6)-Ib-cr), β-lactam antibiotics (blaCTX-M, blaSHV, blaTEM), quinolones (qnrA, qnrB), sulfonamides (sul1, sul2), trimethoprim (df...

Antibiotic resistance is a public health problem. The emergence of carbapenemase-producing Enterobacterales (CPE) infections concern, particularly in Senegal. (1) Methods: Between January 2019 and July 2022, 240 isolates enterobacteria resistant to third-generation cephalosporins imipenem from biological samples Fann Hospital (Dakar) Hôpital Paix (Ziguinchor) were selected. identified by MALDI-...

CTX-M-producing Escherichia coli isolates from three Croatian hospitals were analyzed. All bla(CTX-M-15) genes and one bla(CTX-M-3a) gene resided in widely spread ISEcp1 transposition modules, but other bla(CTX-M-3a) genes were in a new configuration with two IS26 copies, indicating a new event of gene mobilization from a Kluyvera ascorbata genome. The study confirmed the role of the E. coli ST...

Sir, CTX-M-15 is an extended-spectrum b-lactamase (ESBL) extensively reported in humans, and in particular in Escherichia coli clones of sequence types (STs) ST131 and ST405. The blaCTX-M-15 gene has also become prevalent in Klebsiella pneumoniae, causing outbreaks in hospitals worldwide. – 4 In animals, a highly prevalent ESBL gene is the blaCTX-M-1 gene, with the blaCTX-M-15 gene also being f...