Educational intervention to improve infection prevention and control practices in four companion animal clinics in Switzerland.

Background: Infection prevention and control (IPC) practices vary among companion animal clinics, and outbreaks with carbapenemase-producing Enterobacterales (CPE) have been described.

Aim: To investigate the effect of an IPC intervention (introduction of IPC protocols, IPC lectures, hand hygiene campaign) in four companion animal clinics.

Methods: IPC practices, environmental and hand contamination with antimicrobial-resistant micro-organisms (ARM) and hand hygiene (HH) were assessed at baseline, and 1 and 5 months after the intervention.

Emergence of bla and qnrS1 encoded on IncX3 plasmids: Changing epidemiology of extended-spectrum ß-lactamases among Enterobacterales isolated from broilers.

Objectives: The occurrence of extended-spectrum ß-lactamase (ESBL)-producing Enterobacterales in broilers represents a risk to public health because of the possibility of transmission of ESBL producers and/or bla genes via the food chain or within settings where human-animal interfaces exist.

Methods: This study assessed the occurrence of ESBL producers among faecal samples of broilers at slaughter. Isolates were characterised by multilocus sequence typing, antimicrobial susceptibility testing, and whole-genome sequencing.

High occurrence of , , and harbouring oxazolidinone resistance genes in raw meat-based diets for companion animals - a public health issue, Switzerland, September 2018 to May 2020.

IntroductionEnterococci harbouring genes encoding resistance to florfenicol and the oxazolidinone antimicrobial linezolid have emerged among food-producing animals and meat thereof, but few studies have analysed their occurrence in raw meat-based diets (RMBDs) for pets.AimWe aimed to examine how far RMBDs may represent a source of bacteria with oxazolidinone resistance genes.MethodsFifty-nine samples of different types of RMBDs from 10 suppliers (three based in Germany, seven in Switzerland) were screened for florfenicol-resistant Gram-positive bacteria using a selective culture medium.

Finding of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales in wild game meat originating from several European countries: predominance of producing CTX-M-1, November 2021.

IntroductionMeat can be a vehicle for food-borne transmission of antimicrobial resistant bacteria and antimicrobial resistance genes. The occurrence of extended-spectrum beta-lactamase (ESBL) producing Enterobacterales has been observed in meat from livestock production but has not been well studied in meat from wild game.AimWe aimed to investigate, particularly in central Europe, to what extent ESBL-producing Enterobacterales may be present in wild game meat.

Faecal carriage of enterococci harbouring oxazolidinone resistance genes among healthy humans in the community in Switzerland.

Objectives: This study aimed to investigate the faecal carriage of enterococci harbouring oxazolidinone resistance genes among healthy humans in Switzerland and to genetically characterize the isolates.

Methods: A total of 399 stool samples from healthy individuals employed in different food-processing plants were cultured on a selective medium containing 10 mg/L florfenicol. Resulting enterococci were screened by PCR for the presence of cfr, optrA and poxtA.