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Resistant Bacteria Remains Problem for Meat

Antibiotic resistance remains common among meat-borne pathogens, according to the annual National Antimicrobial Resistance Monitoring System report released late last week.

NARMS, which is coordinated between the U.S. Food and Drug Administration, the Centers for Disease Control and Prevention and some state laboratories, is meant to serve as a “reference point identifying and analyzing trends in antimicrobial resistance among these organisms.” 

meat-hanging-406x275.jpgFrom January to December 2010, samples of retail chicken breast, ground turkey, ground beef, and pork chops were collected and tested for Salmonella. Poultry samples were also cultured for Campylobacter. Some labs also pulled samples of meat and poultry to test for E. coli and Enterococcus.

In all, NARMS collected 5,280 samples from California, Colorado, Connecticut, Georgia, Maryland, Minnesota, New Mexico, New York, Oregon, Tennessee, and Pennsylvania.

Salmonella serotypes Typhimurium, Saintpaul, and Heidelberg accounted for 44.5 percent of retail meat isolates. The prevalence of Salmonella Heidelberg — which was the subject of a massive ground turkey recall and multistate foodborne illness outbreak over the summer — among all retail meat continued to decrease, according to the report, from 22.8 to 9 percent from 2002 through 2010.

The report highlighted a number of findings that may reinforce what many public health advocates have been arguing for years: that antibiotic use in agriculture is contributing to drug resistance in bacteria.  The NARMS report pointed out that third-generation cephalosporin resistance rose in chicken breasts (10 to 34.5 percent) and ground turkey (8.1 to 16.3 percent) isolates from 2002 to 2010.

This trend was a key factor in the FDA’s recent decision to limit the off-label uses of cephalosporin in food animals.

“It is likely that the extralabel use of cephalosporins in certain food-producing animal species is contributing to the emergence of cephalosporin-resistant zoonotic foodborne bacteria,” reads the FDA rule. “Resistance to certain cephalosporins is of particular public health concern in light of the evidence of cross-resistance among drugs in the cephalosporin class.”

NARMS also found that 43.3 percent of chicken breast isolates were resistant to three or more antimicrobial classes in 2010 compared to 33.7 percent in ground turkey. More than 29 percent of chicken breast isolates showed resistance to 5 or more classes in 2010. Salmonella Albert was isolated from ground turkey for the first time since 2002 and was resistant to all 8 classes of antimicrobials tested.

Salmonella isolates susceptible to all antimicrobials decreased in pork chops (50 to 35 percent) from 2009 to 2010 and multidrug resistance among Salmonella increased among chicken breasts (29 to 35.7 percent) and ground turkey (22.3 to 30.7 percent).

NARMs also noted that E. coli — which is only harmful in certain cases, but can serve as a marker for the level of contamination — is common in all retail meat products tested in NARMS.

Of 1,840 retail meats tested in 2010 for E. coli, 64 percent were culture-positive for E. coli, with pork chops having the lowest prevalence (39.8 percent) and ground turkey with the highest (80.2 percent).

Gail Hansen, senior officer for the Pew Campaign on Human Health and Industrial Farming, said the report further backed up the importance of limiting antibiotic usage in agriculture, a move that Pew and a wide range of public health groups have been pushing for years.

“It really does reinforce what decades of research has been telling us about antibiotic resistance,” said Hansen, a veterinarian. She noted that NARMS data helped FDA’s decision to limit cephalasporins: “I was stuck by how much this [resistance] has gone up.”

The full NARMS report is available here.


© Food Safety News
  • BB

    Okay….I’m getting tired of seeing this. Do something about it then!!!!!! Ban sub-theraputic antibiotics!!!! When is America going to wake up and realize that everything these greedy corparations (Monsanto, SMithfield, JBS) are doing goes against the laws of nature (GMOs, excessive antibiotic use, toxic pesticides, monocultures, etc.) We’re paying the price with super-weeds, antibiotic resistance and poor health.

  • Ted

    So much irrational fear, so little reasoned analysis. Read the report to learn the facts.
    Poultry definitely continues to have issues while other meats have improved during just the past 8 years. In no case has a boogieman emerged of the sort alarmists like “BB” rush to conjure up. Hell, if there were any truth to fearmongers’ frantic yelping, if the situation were a fraction as dire as they would panic us into believing, then certainly the sky would have fallen ages ago.
    Read the report, read it completely…for understanding. Poultry notwithstanding, there appears to be satisfactory progress. Certainly the poultry situation can also be turned around without resorting to medieval farming techniques like organic dung poultices and superstitious incantations by the darkness of a lunar eclipse.

  • BB

    Doc Mudd? Is that you?

  • Ruby

    Ha, ha, ha, “dung poultices”. Now that you point it out, the screamers only rant and complain. They never offer a workable alternative. Just wild notions roughly equivalent to dung poultices and vague promises of easy supernatural cure-alls. All rendered believable by using plenty of exclamation points (!!!!!!….!!!! whew, I feel smarter and more important already) If only it were that easy.

  • jon

    surely there is a middle ground between “the sky is falling” and smug cynicism.
    Yes, there was impressive improvement in Salmonella Heidelberg, but E coli remains very high (40% in pork chops to 80% in ground turkey) and resistance to multiple antibiotic classes is increasing.
    This article includes an admission that critics were right about the dangers of antibiotic resistance, so I can appreciate the raw, uncooked emotion of BB. It also reinforces the notion that industry self-regulation is inadequate. (now I’ll insert my own hyperbole) That’s akin to asking your dogs to ration a pile of Alpo while your on vacation.
    So does FDA have the authority and money to enforce their well-reasoned decision?