Navigation Links
Superbug MRSA identified in US wastewater treatment plants
Date:11/5/2012

MRSA remained in the effluent.

They found that MRSA, as well as a related pathogen, methicillin-susceptible Staphylococcus aureus (MSSA), were present at all four WWTPs, with MRSA in half of all samples and MSSA in 55 percent. MRSA was present in 83 percent of the influent the raw sewage at all plants, but the percentage of MRSA- and MSSA-positive samples decreased as treatment progressed. Only one WWTP had the bacteria in the treated water leaving the plant, and this was at a plant that does not regularly use chlorination, a tertiary step in wastewater treatment.

Ninety-three percent of the MRSA strains that were isolated from the wastewater and 29 percent of MSSA strains were resistant to two or more classes of antibiotics, including several that the U.S. Food and Drug Administration has specifically approved for treating MRSA infections. At two WWTPs, MRSA strains showed resistance to more antibiotics and greater prevalence of a gene associated with virulence at subsequent treatment stages, until tertiary chlorination treatment appeared to eliminate all MRSA. This suggests that while WWTPs effectively reduce MRSA and MSSA from influent to effluent, they may select for increased antibiotic resistance and virulence, particularly at those facilities that do not employ tertiary treatment (via chlorination).

"Our findings raise potential public health concerns for wastewater treatment plant workers and individuals exposed to reclaimed wastewater," says Rachel Rosenberg Goldstein, environmental health doctoral student in the School of Public Health and the study's first author. "Because of increasing use of reclaimed wastewater, further research is needed to evaluate the risk of exposure to antibiotic-resistant bacteria in treated wastewater."


'/>"/>

Contact: Kelly Blake
kellyb@umd.edu
301-405-9418
University of Maryland
Source:Eurekalert

Page: 1 2

Related biology news :

1. Hunt for superbugs in Australian animals
2. Distinct developmental patterns identified in children with autism during their first 3 years
3. Australian shipping emissions identified
4. The end of an era? Branding horses does not enable them to be identified
5. Nematodes with pest-fighting potential identified
6. Unusual weather events identified during the Black Saturday bushfires
7. Target for potent first-strike influenza drugs identified
8. Skin cancer identified for the first time in wild fish populations
9. New cause of child blindness identified
10. New therapeutic target for prostate cancer identified
11. Parkinsons disease gene identified with help of Mennonite family: UBC-VCH research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... a new study suggest two ways to effectively address the ... in obese women, compared to women of a normal body ... researchers say, but as the population has increased in weight, ... obese women. Studies have consistently found that obesity has a ... in turn affect how well the pill prevents pregnancy. ...
(Date:7/28/2014)... Children,s Research Hospital study found that 73 percent of ... risk of developing metabolic syndrome and related health problems ... appear in the current issue of the journal ... adult survivors of childhood cancer in the study had ... like high blood pressure, abdominal obesity, elevated triglyceride and ...
(Date:7/28/2014)... tool that can help advance the genetic engineering ... bioenergy, has been developed by researchers with the ... (JBEI), a multi-institutional partnership led by Lawrence Berkeley ... developed an assay that enables scientists to identify ... critical components in the biosynthesis of plant cell ...
Breaking Biology News(10 mins):Strategies identified to improve oral contraceptive success with obese women 2Unhealthy habits more than double risk of metabolic syndrome in childhood cancer survivors 2Unhealthy habits more than double risk of metabolic syndrome in childhood cancer survivors 3How sweet it is 2How sweet it is 3
... 2012) Eye injuries in war have changed ... tactics, technology and strategies have evolved. Today,s soldiers ... areas not protected by body armor. Military experts and ... and Ear will convene in Boston, Mass., on Sept. ...
... almost $19 million will help to develop technologies ... the National Human Genome Research Institute (NHGRI), part ... During the past decade, DNA sequencing costs ... technologies and process improvements developed by genomics researchers. ...
... time this morning getting your shoes on or thinking about ... suffering with debilitating diseases such as ALS (Lou Gehrig,s disease) ... breathing and eating -- can be a struggle. They ... hopes to help through research that has just been funded ...
Cached Biology News:New NIH/NHGRI grants to harness nanoscale technologies to cut DNA sequencing costs 2New NIH/NHGRI grants to harness nanoscale technologies to cut DNA sequencing costs 3Neurobiologist Rodal wins New Innovator award 2
(Date:7/28/2014)... 2014 Research and Markets has announced ... 2014-2018" report to their offering. ... a technique used to determine the size of a particle ... crucial to analyze the size of particles as it can ... is performed to determine the behavior and nature of a ...
(Date:7/25/2014)... Trillions of bacteria live in each person,s digestive tract. ... food and stave off harmful infections, but their role ... help shed light on the role of these bacteria, ... Eric Alm recently tracked fluctuations in the bacterial populations ... findings, described in the July 25 issue of the ...
(Date:7/25/2014)... 25, 2014 The Conferee Networking committee ... for Conferee Networking. These two-hour sessions provide a unique ... and resolve problems, discuss new techniques, or brainstorm new ... submit a topic for consideration is August 31, 2014, ... The Conferee Networking committee will review the topics, and ...
(Date:7/25/2014)... , July 25, 2014 Sinovac Biotech Ltd. ... products in China , today announced that ... quarter ended June 30, 2014, after market close on Thursday, ... call prior to the market opening on Friday, August 15, ... 8:00 p.m. China Standard Time) to review the Company,s financial ...
Breaking Biology Technology:Global Particle Size Analysis Market 2014-2018 2Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Pittcon 2015 Announces Call for Topics for Conferee Networking Sessions 2Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2
... Va., Nov. 9 CEL-SCI Corporation (NYSE Amex: CVM) ... Professor of Immunology and Microbiology of Northeastern Ohio Universities ... in collaboration with scientists at the Cleveland Clinic and ... was presented at the 7th GTCbio Vaccine: "All Things ...
... ... allowing veterinary research subjects, research facilities and research safety study data to be managed ... ... today that it has unveiled Pristima™ VM, an integrated enterprise software solution for research ...
... As global temperatures and energy costs continue to soar, ... sustainable future. An attractive replacement for gasoline ... Genome Research ( www.genome.org ), scientists have ... clues that will be critical in developing new technologies ...
Cached Biology Technology:CEL-SCI Collaborators Present Data Suggesting That LEAPS Technology Has Ability to Modify Immune Response 2CEL-SCI Collaborators Present Data Suggesting That LEAPS Technology Has Ability to Modify Immune Response 3Xybion Unveils Pristima™ VM, an Integrated Enterprise Software Solution for Vivarium and Veterinary Care Management 2Genomes of biofuel yeasts reveal clues that could boost fuel ethanol production worldwide 2
... The Jouan RCT series of refrigerated ... suited to trapping of low volatility/aqueous solvents ... with RC10 and other vacuum concentrators/centrifugal evaporators. ... in cooling systems such as used in ...
Black 96 Well Plate EB, RE Bottom...
... high durability and capacity with unequalled ease ... prevents vibration, allowing the unit to run ... part, from the large rubber block vibration ... platform is designed to last through years ...
...
Biology Products: