If you buy meat at the grocery store, you may be exposing yourself and your family to antibiotic-resistant bacteria, sometimes called “superbugs.” The use of antibiotics on factory farms, in order to bring animals to slaughter faster or to make up for crowded conditions on feed lots, is one of the reasons why antibiotic resistance is on the rise.
In April, the Environmental Working Group (EWG) released a report analyzing antibiotic resistance of bacteria detected in supermarket meat. We surfaced data found in the annual report of the National Antimicrobial Resistance Monitoring System, a federal food safety effort run by the Food and Drug Administration, Centers for Disease Control and Prevention, and US Department of Agriculture.
This government report consists of large amounts of raw data; EWG crunched the numbers to make the data accessible to busy consumers. We wanted to show you what you deserve to know – that the increasing presence of antibiotic-resistant bacteria on meat is a serious problem for public health.
The government data showed that one antibiotic-resistant strain of a germ called Enterococcus faecalis, normally found in human and animal intestines, was widespread on a wide variety of meats. High percentages of store-bought meat tested positive for this antibiotic-resistant bacterium, including 81% of ground turkey, 69% of pork chops, 55% of ground beef and 39%of chicken breasts, wings or thighs. Scientists use the presence of these particular bacteria as a gauge of meat contamination. Finding it means that: 1) The meat likely came into contact with fecal matter; and 2) There’s a high likelihood that other antibiotic-resistant bacteria are on the meat as well. All in all, 87% of all the meat examined by the government researchers tested positive for these indicator bacteria – in both normal and antibiotic-resistant forms.
Our report highlighted more government data that might make you think twice at the supermarket. Among the findings: Poultry showed significant rates of contamination by antibiotic-resistant salmonella and Campylobacter. These two germs are responsible for nearly 3.6 million cases of food poisoning a year. Federal scientists regularly examine poultry and find salmonella resistant to six or more classes of antimicrobials. The percentage of antibiotic-resistant salmonella in chicken right now is at a nine-year high, as is the percentage of Campylobacter resistant to two or more classes of antibiotics.
The FDA has issued a statement on the EWG’s report, stating that it “oversimplifies the … data and provides misleading conclusions.” You can read the full response here. The FDA also suggested that it was “inaccurate and alarmist to define bacteria resistant to one, or even a few, antimicrobials as ‘superbugs'" because it can still be treated with other antibiotics – for now.
The FDA glossed over the reality that scientists know well: Antibiotic-resistance traits can spread as genes pass freely from one microbe to another. Microbes that have adapted to defeat antibiotics designed to kill them can share this ability – and create more superbugs.