Send to

Choose Destination
Foodborne Pathog Dis. 2011 Feb;8(2):333-6. doi: 10.1089/fpd.2010.0701. Epub 2010 Oct 29.

Salmonella enterica and Escherichia coli harboring blaCMY in retail beef and pork products.

Author information

Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA.


We estimated the proportion of retail beef and pork products containing bla(CMY)-mediated third-generation cephalosporin resistance in commensal Escherichia coli and Salmonella enterica. Samples were obtained from 50 grocery stores located in two U.S. states. From each store, 20 fresh meat products were purchased, including 7 packages of ground beef, 3 packages of beef steak, 6 packages of pork chops, and 4 packages of pork ribs. The resulting 1000 packages of fresh meat product were individually screened for the presence of E. coli or Salmonella harboring bla(CMY). Over 8% of all retail meat packages contained E. coli with bla(CMY), whereas 4% contained Salmonella and only 0.5% contained Salmonella with bla(CMY). Retail pork products more frequently yielded E. coli with bla(CMY) than did beef products (12.2% vs. 4.0%; pā€‰=ā€‰0.06). Salmonella were also recovered more frequently from pork than beef (5.8% vs. 2.4%; pā€‰<ā€‰0.01). In addition, all five Salmonella isolates with bla(CMY) were recovered from pork products. Our data suggest that enteric bacteria carrying bla(CMY) are frequently present in fresh retail meat products. However, we did not quantify the number of resistant bacteria present in these products, which makes the public health implications of this result unclear.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Atypon
Loading ...
Support Center