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Deadly Strain of MRSA from US Spreads to U.K., Warns Doctors

The number of potentially deadly strains of MRSA that are easily passed between healthy people, outside hospitals is increasing in the UK, experts said today. They include a flesh-eating form of pneumonia, USA300, which has spread across the US and is now being seen in the UK. Dr Ruth Massey, from the Department of Biology and Biochemistry at the University of Bath, said extra vigilance was required around PVL-positive community acquired MRSA strains.

She drew attention to USA300, a deadly strain of the superbug which passes easily through skin-to-skin contact. It 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.

Dr Massey said there were 1,000 cases of PVL-positive community acquired MRSA in England in the last year, of which 200 were USA300 strains.

‘These community-acquired strains seem to be good at affecting healthy people – they seem to be much better than the hospital ones at causing disease. ‘They don’t rely on healthcare workers moving them around, which the hospital ones seem to.’

In a new research paper published in the Journal of Infectious Diseases, Dr Massey and colleagues analyse the way community-acquired MRSAs are able to adapt and fine tune themselves to spread outside of hospitals.

The ability of the MRSA bacteria to secrete toxins is one of the main ways it causes disease. ‘Using a sensing system, it carefully controls when it switches on its ability to do this, so as not to cause disease until it is firmly established within the human.

‘Many antibiotics target the cell walls of harmful bacteria, and to resist this, the bacteria have to make changes to their cell wall.’

She added: ‘While we are constantly learning more about MRSA, there is a serious threat posed by this newer strain of bacteria capable of causing disease and even death in perfectly healthy people.

‘We need to respond seriously to this threat as it reaches Britain from the United States.’

…(Daily Mail)

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February 2, 2012 - Posted by | Health Warning | , , , , , ,

1 Comment »

  1. I have the “old” strain of MRSA and the only way I killed it was with the very powerful anti-biotic Liviquin 500MG tablets. This medication should only be used in extreme cases as it’s a super anti-biotic that should be saved for the really problamtic health issues.
    yours,
    Bill Foster

    Comment by wfoster2011 | February 2, 2012 | Reply


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