Navigation Links
Drug-resistant bacteria on poultry products differ by brand

The presence of drug-resistant, pathogenic bacteria on uncooked poultry products varies by commercial brand and is likely related to antibiotic use in production, according to researchers at the Johns Hopkins Bloomberg School of Public Health. Their study is the first to directly compare bacterial contamination of poultry products sold in U.S. supermarkets from food producers who use antibiotics and from those who claim they do not. The study focused on antibiotic resistance, specifically fluoroquinolone-resistance in Campylobacter, a pathogen responsible for 2.4 million cases of food-borne illness per year in the U.S., according to the Centers for Disease Control and Prevention. The study is published online in the journal Environmental Health Perspectives.

"Our use of medically important classes of antibiotics in food-animal production creates a significant public health concern," said the study's lead author Lance Price, a doctoral candidate and fellow at the Bloomberg School of Public Health's Center for a Livable Future. "Companies that use antibiotics foster the development of drug-resistant bacteria which can spread to the human population. Claims have been made that using antibiotics increases food safety by reducing pathogens on the meat. Interestingly, in addition to the results regarding fluoroquinolone-resistant Campylobacter, we also found that brands that do not use any antibiotics during production were no more likely to contain Campylobacter than those that do. In fact, the only brand with a significantly lower rate of Campylobacter contamination was actually an antibiotic-free brand."

Price explained that previous epidemiological studies have indicated that fresh poultry products are a major source of Campylobacter infections in humans. Exposure can occur from undercooked products or through cross-contamination during food preparation, when raw poultry is handled in the kitchen. The danger of infection is heightened when this pathogen is resistant to antibiotics. Not only can the bacteria itself cause illnesses such as diarrhea in humans, but fluoroquinolones are some of the most important drugs used to treat a variety of infections, including those caused by Campylobacter. The widespread presence of this drug-resistant form of the bacteria makes the antibiotic less effective in human medicine. Especially vulnerable are the very young, the elderly and people whose immune systems are compromised.

In 2000, the Food and Drug Administration proposed to withdraw approval of fluoroquinolone drugs for use in poultry production. That effort has since been stalled by legal objections from Bayer, one of the pharmaceutical companies manufacturing the drug. In the meantime, two major U.S. poultry producers, Tyson Food and Perdue Farms, separately announced in 2002 that they would immediately stop using fluoroquinolones to treat poultry flocks.

One year after the Tyson and Perdue announcements, Price and his team began a survey of Campylobacter isolates on uncooked chicken products from Tyson and Perdue and from two other producers, Eberly and Bell & Evans, who claim their production methods are completely antibiotic-free. Using both standard isolation methods and new methods modified to enhance detection of fluoroquinolone-resistant Campylobacter, they compared retail products purchased at grocery stores in Baltimore, Md. A high percentage of the products from the two conventional brands were contaminated with fluoroquinolone-resistant Campylobacter (96 percent from Tyson and 43 percent from Perdue) while significantly lower proportions of 'antibiotic-free' products were contaminated with fluoroquinolone-resistant Campylobacter (5 percent from Eberly and 13 percent from Bell & Evans).

"These results suggest that fluoroquinolone-resistance may persist in the food supply for a substantial period of time even after antibiotic use is discontinued," said Price. "Assuming that what we are observing are lingering resistant strains rather than the result of continued drug use, then one has to conclude that fluoroquinolone use in poultry production presents a long-term threat to people."

The study was supported by the Johns Hopkins Center for a Livable Future and by the Heinz Family Foundation.

E. Johnson, R. Vailes, and E. Silbergeld from the Johns Hopkins Bloomberg School of Public Health, co-authored this study "Fluoroquinolone-Resistant Campylobacter Isolates from Conventional and Antibiotic-free Chicken Products."


'"/>

Source:Johns Hopkins University Bloomberg School of Public Health


Related biology news :

1. NYCs First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention
2. Drug-resistant bacteria patterns in intensive care units changing nationally
3. Drug-resistant bacterial infections serious complication after corrective eye surgery
4. Anti-bacterial additive widespread in U.S. waterways
5. A bacterial genome reveals new targets to combat infectious disease
6. Discovery of key proteins shape could lead to improved bacterial pneumonia vaccine
7. Scientists discover that host cell lipids facilitate bacterial movement
8. Family trees of ancient bacteria reveal evolutionary moves
9. Programmable cells: Engineer turns bacteria into living computers
10. NASA links nanobacteria to kidney stones and other diseases
11. Substance protects resilient staph bacteria
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/7/2017)... 7, 2017   HireVue , the leading provider ... identify the best talent, faster, today announced the additions ... (CSO) and Diana Kucer as Chief Marketing ... executive team poised to drive continued growth in the ... year of record bookings in 2017. "Companies ...
(Date:3/2/2017)... , March 2, 2017 Who risk ... lawsuits? Download the full report: https://www.reportbuyer.com/product/4313699/ ... THE FINGERPRINT SENSOR FIELD? Fingerprint sensors using capacitive ... The fingerprint sensor vendor Idex forecasts an increase of ... mobile devices and of the fingerprint sensor market between ...
(Date:2/28/2017)... February 28, 2017 News solutions for biometrics, ... ... from 14 to 16 March, Materna will present its ... how seamless travel is a real benefit for passengers. To ... to their passenger touch point solutions to take passengers through the ...
Breaking Biology News(10 mins):
(Date:3/29/2017)... , March 29, 2017 /PRNewswire/ - Last year,s petition to ... not the only efforts active to generate awareness on the importance ... pharmaceutical drugs in the healthcare market place. ... Earlier this month Health Advance ... distributor of pharmaceutical and nutritional products, announced its endeavors on this ...
(Date:3/29/2017)... (PRWEB) , ... March 29, 2017 , ... ComplianceOnline, the ... subjects has announced its 3rd Annual Medical Device Summit 2017 venue and speaker lineup. ... Parker House Hotel, in Boston, MA. , The Omni Parker House Hotel, which is ...
(Date:3/29/2017)... ... March 29, 2017 , ... ACEA Biosciences, ... disperses a quarterly travel award to noteworthy scientists who will be presenting research ... its new round of awards are being given to two postdoctoral fellows studying ...
(Date:3/29/2017)... NEWARK, Del. , March 29, 2017 ... medicine company, and W. L. Gore & ... announced a collaborative research agreement whereby the two companies ... delivery device technologies that provide protection from immune rejection. ... has been developing innovative stem cell-derived cell replacement therapies ...
Breaking Biology Technology: