Shiga toxin producing Escherichia (E.) coli (STEC) are important foodborne pathogens. They can cause severe diseases such as haemorrhagic Colitis or haemolytic uremic syndrome. A longitudinal cohort study in three finishing sites was conducted to study the epidemiology of STEC in final fattening pigs and examine the risks they may pose for human infections with STEC.
Consistent with our prior studies, Stx2e was the most frequently observed Stx variant in final fattening pigs (93,9%).
The results confirm that pigs raised for pork production are a reservoir for human STEC infections. Circulating serotypes within the cohorts as well as factors for site management have a significant influence on the prevalence of STEC.
Source: International Journal of Food Microbiology
Read the full study on www.sciencedirect.com
Last July, the European Commission adpoted an Implementing Decision regarding the authorisation of all the veterinary drugs containing 'colistin' in combination with other oral antimicrobial drugs. https://www.pig333.com/latest_swine_news/commission-forbids-sale-of-colistin-combined-with-other-antimicrobials_11694/
Read the full article on pig333.com
The Committee therefore recommended the refusal of the granting of the marketing authorisations and the withdrawal of the existing marketing authorisations for veterinary medicinal products containing zinc oxide.
Read the full article on pig333.com
German researchers found more than 400 Escherichia coli isolates, which tested positive for the MCR-1 gene. This gene can make bacteria resistant to colistin, a powerful antibiotic. MCR-1 was found in 79,8% of colistin-resistant E.coli isolates. The study screened over 10.000 E.coli isolates, which have been gathered from German food and livestock from 2010 to 2015. The gene was most prevalent in poultry production and food chains. Overall, the scientists claim, that the prevalence of the MCR-1 gene is twice as high in Germany as it is in France. The colistin resistance in Germany is also higher than the average among European countries, which may be caused by higher use of polymixin antibiotics. More studies need to be conducted to better assess the findings.
Read the full article on www.cidrap.umn.edu
First results from resistance monitoring conducted at the Federal Institute for Risk Assessment (BfR) show that colistin resistant bacteria are wide spread among farm animals in Germany. The resistances were most frequently found in Escherichia coli of broilers. “The current results underline that the strategy of a responsible use of antibiotics must be consistently pursued in future", says the President of the BfR, Professor Dr. Dr. Andreas Hensel. Further biomolecular studies will be conducted to assess potential risks to consumers. It is recommended to follow careful kitchen hygiene, so germs are not transferred from meat to other food. Also, meat should be heated thoroughly before eating, so that it reaches a temperature of 70°C for 2 minutes at its core.
Read the full article on www.bfr.bund.de
To match the latest scientific literature regarding antimicrobial use in human and veterinary fields, the Pig Veterinary Society (PVS) has updated their prescribing principles for antimicrobials. These principles divide antimicrobials into 3 classes. Class 1 antimicrobials can be subscribed within responsible use guidelines, class 2 antimicrobials are not to be used unless sensitivity tests or clinical experience has proven that the first choice antimicrobials are not effective. Colistin has now been moved into Class 3, which are products of last resort. Those are only to be used when no other option is available and has to be supported by laboratory sensitivity tests. This step was necessary, because the importance of Colistin as a critically important antimicrobial in human medicine is increasingly evident. PVS advices their members to download the new version of the principles and follow the guidance within the document.
Read the full article on www.pigvetsoc.org.uk
Danish agricultural fields are increasingly contaminated with zinc. This is due to the high content of zinc in pig manure which is used as fertilizer on said fields.The Danish Ministry of Environment and Food called the presented data “worrying” and that alternatives have to be considered. In pigs zinc and copper are used after weaning, especially for the prophylaxis of diarrhea and edema disease. An alternative for the latter could be the one shot vaccination against Shiga toxin.
Read the full article on www.animal-health-online.de