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NARMS Report Reveals Improvements in Antibiotic Resistance Trends

Tuesday, August 18, 2015

(North American Meat Institute)

The Food and Drug Administration (FDA) released its 2012-2013 National Antimicrobial Resistance Monitoring System (NARMS) Integrated Report , which presents a collection of data on antimicrobial resistance patterns in foodborne Salmonella, Camplyobacter, Enterococcus and E. coli bacteria isolated from humans, retail meats and animals at slaughter. FDA stated that the report revealed mostly encouraging findings. Specifically, 80 percent of human Salmonella isolates are not resistant to any of the tested antibiotics, a finding that has not changed in 10 years. There also has not been an increase in Salmonella multi-drug resistance in human, cattle and chicken isolates in the past decade.

The report did, however, highlight some areas of concern. The data show an increase in multi-drug and ceftriaxone resistance in Salmonella serotype Dublin isolated from cattle and human sources and a rise in multi-drug resistance in human isolates of a common Salmonella serotype (I 4,[5],12:i:-).

This year's report, which replaces FDA's annual NARMS Executive Summary, is the first integrated report to cover multiple years of testing, and features changes to its format and sampling methodology. Animal testing now includes cecal, or intestinal, testing of food-producing animals presented for slaughter before they are exposed to in-plant processing, thereby improving indicators to assess the microbial status of animals in farm settings. Further, the new in-plant sampling makes it possible to distinguish market hogs and sows among swine samples and dairy and beef among cattle samples.

NARMS is a partnership between FDA, the Centers for Disease Control and Prevention and USDA to monitor foodborne pathogens to determine whether they are resistant to various antibiotics used in human and veterinary medicine.

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