Tag Archives | MRSA

Strain of Deadly ‘Flesh-Eating’ MRSA Bacteria Originally Came from Cattle

roflbotMuch like HIV made the leap from non-human primates to us, a strain of the antibacterial-resistant pathogen MRSA seems to have originated with cattle:

Via Eurekalert:

A strain of bacteria that causes skin and soft tissue infections in humans originally came from cattle, according to a study to be published in mBio®, the online open-access journal of the American Society for Microbiology. The researchers who conducted the genetic analysis of strains of Staphylococcus aureus known as CC97 say these strains developed resistance to methicillin after they crossed over into humans around forty years ago. Today, methicillin-resistant S. aureus (MRSA) strain CC97 is an emerging human pathogen in Europe, North and South America, Africa, and Asia. The findings highlight the potential for cows to serve as a reservoir for bacteria with the capacity for pandemic spread in humans.

The researchers sequenced the genomes of 43 different CC97 isolates from humans, cattle, and other animals, and plotted their genetic relationships in a phylogenetic tree.

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Flesh-Eating Bacteria Mutation Now Spread By Sneezing And Handshakes

4014611539_bfdaef47d5My bet for how civilization will end in 2012…The worst strains of antibiotic-resistant “superbugs” have largely been found within hospitals, but the newest version can be contracted far more easily and is spreading through the streets in Britain and the United States, the Daily Mail reports:

A flesh-eating form of pneumonia that is easily passed between healthy people on public transport is spreading across the UK, experts have warned.

The deadly strain of MRSA called USA300 passes easily through skin-to-skin contact. It can also survive on surfaces and so has the potential to be picked up on crowded buses and tubes. It was first seen in the U.S but cases are now being reported in the community and not just hospitals in Britain.

USA300 is resistant to treatment by several front-line antibiotics and can cause large boils on the skin. In severe cases, USA300 can lead to fatal blood poisoning or a form of pneumonia that can eat away at lung tissue.

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Cockroaches Contain Antibiotics To Treat MRSA & E-coli

New York City may be the breeding ground for the next antibiotic for superbugs. It’s good to see there may be a use for cockroaches besides creating an image of “dank and dingy hotels.” Daily Mail reports:

Cockroaches are usually seen as a health hazard, to be found in dank and dingy hotels.

But scientists believe that they could hold the secret to treating the most resilient of superbugs.

Tests have found tissue from the brains and nervous systems of the insects can kill off more than 90 per cent of MRSA and E-coli infections without harming human cells.

Simon Lee, a postgraduate researcher at the University of Nottingham, says they hold powerful antibiotic properties after discovering nine different molecules in their tissues which are toxic to bacteria.

He said: ‘We hope that these molecules could eventually be developed into treatments for E-coli and MRSA infections that are increasingly resistant to current drugs.

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