Navigation Links
Cattle can be a source of MRSA in people, scientists find

A type of MRSA found in humans originated in cattle at least 40 years ago, new research has found.

The study provides clear evidence that livestock were the original source of an MRSA strain which is now widespread in people.

Researchers studied the genetic make-up of more than 40 strains of a bacterium -- called Staphylococcus aureus -- that can build up antibiotic resistance to develop into MRSA.

At least two genetic subtypes of the bacterium, which have become endemic in people, have been traced back to cattle by the scientists, who are based at The Roslin Institute at The University of Edinburgh.

Researchers say the most likely scenario is that the bug crossed over from cattle to people through direct contact -- perhaps through people working with farm animals.

The research will help scientists find out how the bacteria are able to spread and cause disease in humans and to prevent further strains from jumping from livestock.

After switching to human hosts, the Staphylococcus aureus bacterium became resistant to the antibiotic methicillin and developed into methicillin-resistant Staphylococcus aureus-- or MRSA. In addition, the bacteria acquired the ability to avoid attack by the human immune system. However, these bacteria that originated in cattle do not appear to be more aggressive or more resistant to antibiotics than other MRSA affecting humans.

Lead researcher, Professor Ross Fitzgerald, of The Roslin Institute, said: "Human infections caused by bacteria being transmitted directly from livestock are well known to occur. However this is the first clear genetic evidence of subtypes of Staph. aureus which jumped from cattle and developed the capacity to transmit widely among human populations'.

The study is published in the journal mBio.

Laura Spoor, of The Roslin Institute and first author on the research paper, added: "This research provides insight into how some strains of MRSA have evolved and help us better understand how they have adapted to cause disease in different host species."


Contact: Tara Womersley
University of Edinburgh

Related biology news :

1. MRSA strain in humans originally came from cattle
2. Study reveals impact of historical domestic cattle hybridization with American bison
3. A new line of defense: Researchers find cattle vaccine works to reduce E. coli O157:H7
4. Study finds mad cow disease in cattle can spread widely in ANS before detectable in CNS
5. Research reveals new clue in fight against TB in cattle
6. A greener, more sustainable source of ingredients for widely used plastics
7. Seafood still considered a good source of nutrients but consumers confused on safety
8. Healthrageous, United BioSource And Boehringer Ingelheim Launch SMART Digital Diabetes Study
9. Study identifies Deepwater Horizon debris as likely source of Gulf of Mexico oil sheens
10. Genomes of cholera bacteria from Haiti confirm epidemic originated from single source
11. Ben-Gurion U. and UChicago research collaboration targets water resource innovations
Post Your Comments:
(Date:6/2/2016)... , June 2, 2016   The Weather Company ... announcing Watson Ads, an industry-first capability in which consumers will ... being able to ask questions via voice or text and ... Marketers have long sought an ... consumer, that can be personal, relevant and valuable; and can ...
(Date:5/24/2016)... IRVINE, Calif. , May 24, 2016 Ampronix facilitates superior patient care ... LMD3251MT  3D medical LCD display is the latest premium product recently added to ... ... ... Sony 3d Imaging- LCD Medical Display- Ampronix News ...
(Date:5/12/2016)... DALLAS , May 12, 2016 ... has just published the overview results from the Q1 ... of the recent wave was consumers, receptivity to a ... wearables data with a health insurance company. ... choose to share," says Michael LaColla , CEO ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... , June 24, 2016  Regular discussions on a ... take place between the two entities said Poloz. ... Ottawa , he pointed to the country,s ... the federal government. ... said, "Both institutions have common economic goals, why not sit ...
(Date:6/24/2016)... ... June 24, 2016 , ... Researchers at the Universita Politecnica delle Marche in ... peritoneal or pleural mesothelioma. Their findings are the subject of a new article on ... biomarkers are signposts in the blood, lung fluid or tissue of mesothelioma patients that ...
(Date:6/23/2016)...   Boston Biomedical , an industry leader ... target cancer stemness pathways, announced that its lead ... Designation from the U.S. Food and Drug Administration ... gastroesophageal junction (GEJ) cancer. Napabucasin is an orally ... stemness pathways by targeting STAT3, and is currently ...
(Date:6/23/2016)... , June 23, 2016 Houston ... with the Cy-Fair Sports Association to serve as ... the agreement, Houston Methodist Willowbrook will provide sponsorship ... and connectivity with association coaches, volunteers, athletes and ... with the Cy-Fair Sports Association and to bring ...
Breaking Biology Technology: