Infectious Diseases 2021

Infectious Diseases 2021

Prevalence of E. coli type 131 as a foodborne pathogen in Swiss chicken

21 October, 2021

Within recent years, the topic of multidrug-resistant E. coli strains, specifically Sequence Type 131 (ST 131) has seen a surge in occurrence as a foodborne pathogen. This has prompted the Swiss Federal Food Safety and Veterinary Office (FSVO) to investigate further into the problem.
The Zurich University of Applied Sciences was thus tasked with reviewing available literature and evaluating the risk that this newly emerging threat poses to the Swiss population. After reviewing literature and doing a risk evaluation, the result was, that mainly chicken and poultry products are affected. Based on these findings, the ZHAW was further tasked with doing a prevalence test on these products, in order to confirm what was speculated based on literature.
A new report shows:
Out of the 200 samples analyzed, 25 (12.5 %) were tested positive. Further, samples were divided into organic and conventionally raised chicken. Organic samples (60, 33%) were tested positive in 12 cases (20 % of samples), meanwhile conventional samples (140, 66%) tested positive in 13 cases (9.2 % of samples).