Navigation Links
E. coli bacteria more likely to develop resistance after exposure to low levels of antibiotics, reports a study in Microbial Drug Resistance

New Rochelle, NY, June 14, 2011E. coli bacteria exposed to three common antibiotics were more likely to develop antibiotic resistance following low-level antibiotic exposure than after exposure to high concentrations that would kill the bacteria or inhibit their growth, according to a timely article in Microbial Drug Resistance, a peer-reviewed journal published by Mary Ann Liebert, Inc. The article is available free online at

E. coli bacteria in food and water supplies have been responsible for disease outbreaks and deaths around the world in recent years. The current outbreak in Europe has sickened thousands of individuals and caused multiple deaths and life-threatening complications in hundreds of persons infected with a new strain of E. coli.

Bacterial resistance to commonly prescribed antibiotics is an enormous and growing problem, largely due to misuse of antibiotics to treat non-bacterial infections and environmental exposure of the bacteria to low levels of antibiotics used, for example, in agriculture. In the article "De Novo Acquisition of Resistance to Three Antibiotics by Escherichia coli," the authors studied the mechanisms by which E. coli acquire resistance to three common antibiotics: amoxicillin, tetracycline, and enrofloxacin. Depending on the antibiotic and the level of exposure, different mechanisms may come into play. The authors report that exposure to antibiotics at relatively low levels--below those needed to inhibit growth of the bacteria--are more likely to result in the development of antibiotic resistance. "Exposure to low levels of antibiotics therefore clearly poses most risk," a finding that "contradicts one of the main assumptions made questioning the threat of usage of antibiotics in food animals," conclude the authors.


Contact: Vicki Cohn
Mary Ann Liebert, Inc./Genetic Engineering News

Page: 1

Related biology news :

1. Disinfectants can make bacteria resistant to treatment
2. H. Pylori bacteria may help prevent some esophageal cancers
3. Scientists discover bacteria that can cause bone infections
4. Waste from gut bacteria helps host control weight, UT Southwestern researchers report
5. Gene against bacterial attack unravelled
6. Predatory bacterial swarm uses rippling motion to reach prey
7. Bacteria manage perfume oil production from grass
8. Nature study demonstrates that bacterial clotting depends on clustering
9. Battling bacteria in the blood: Researchers tackle deadly infections
10. Shifts in soil bacterial populations linked to wetland restoration success
11. New bacteria discovered in raw milk
Post Your Comments:
Related Image:
E. coli bacteria more likely to develop resistance after exposure to low levels of antibiotics, reports a study in Microbial Drug Resistance
(Date:10/8/2015)... 2015 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile ... wallet announces that revenues for the three months ... with $113,00 for the three months ended June ... September 30, 2015 were approximately $520,000. ...
(Date:10/6/2015)... Oct. 6, 2015 Track Group, Inc. (OTCQX: ... it has signed a contract with the Virginia Department ... full range of sentences under the Department,s oversight. ... Americas. "This contract with the Virginia DOC will expand ... and advances our position as a trusted leader in ...
(Date:10/2/2015)... 02 2015 ... "Enforcing the Law Using Biometrics" report to ... announced the addition of the "Enforcing the ... --> Research and Markets ( ... "Enforcing the Law Using Biometrics" report to ...
Breaking Biology News(10 mins):
(Date:10/12/2015)... ... ... LifeTrak , a leader in consumer fitness, heart rate and activity ... tracker that seeks to meet the needs of multi-sport athletes. Zoom is the first ... both in water and on land, making it the only fitness tracker an athlete ...
(Date:10/10/2015)... 2015 Am 8. Oktober hat die ... für Kalifornien) ihre Würdigung der International Plasma Awareness ... Aufzeichnungen des Kongresses eintragen lassen. Die IPAW wird ... (PPTA) und ihren Mitgliedsunternehmen unterstützt. Ihre Ziele bestehen ... über Plasmaspenden weltweit , Würdigung des Beitrages ...
(Date:10/9/2015)... ROCKVILLE, Md. , Oct. 9, ... biotechnology company developing next generation vaccines based on ... entered into an exclusive worldwide licensing agreement with ... treatment or prevention of any and all allergic ... Immunomic Therapeutics will receive an upfront payment of ...
(Date:10/9/2015)... ... October 09, 2015 , ... From blood to ... separating those cells from their surroundings for research, diagnostics, and cell therapy—also known ... address this, Ann Arbor-based startup Akadeum Life Sciences is developing a ...
Breaking Biology Technology: