Antimicrobial Resistance is hidden within multiserovar Salmonella populations in cattle

An article entitled “Antimicrobial Resistance Hidden within Multiserovar Salmonella Populations“published in Antimicrobial Agents and Chemotherapy (Antimicrob Agents Chemother, 2021 May 18;65(6)), shows that there may be more antimicrobial-resistant Salmonella in cattle than previously thought. The research found that traditional culturing methods used to test livestock for pathogens often miss drug-resistant strains of Salmonella. Their data showed that 60% of cattle fecal samples contained multiple strains of Salmonella that traditional testing methods missed. Additionally, many samples tested positive for a drug-resistant Salmonella Reading. The Salmonella population changed after treatment with antibiotics, allowing S. reading to thrive. The data suggest that traditional tests have underestimated the amount of antibiotic-resistant bacteria. The use of CRISPR-SeroSeq flagged the Salmonella Reading regardless of antibiotic treatment. Using CRISPR-SeroSeq can help estimate the numbers of antibiotic-resistant Salmonella. @

 University of Georgia study finds antibiotic-resistant bacteria in cattle
University of Georgia study finds antibiotic-resistant bacteria in cattle

Harmful bacteria are hiding in livestock. Traditional methods of detecting and tracking antibiotic-resistant germs aren’t detecting them.

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