Agribusiness
What is the superbug LA-MRSA CC398 and why is it spreading on farms?
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The threat of MRSA in hospitals has generated an urgent response, but an MRSA variant is spreading from farm livestock to supermarket meat unchecked.
MRSA is best known in the UK for causing hospital-acquired infections – and many deaths. There has been little human to human transmission of the superbug in the community, but it is particularly dangerous in hospitals because it can colonise wounds easily, especially where patients’ immunity is low. It has been associated with poor hygiene in hospitals, but the main factor behind the spread of MRSA has been the over-prescription of antibiotics, which has allowed a rather mundane germ that lives on many of our bodies without causing any problems to become far more dangerous to human health. CC398, a new variant of MRSA, emerged in animals and is found in intensively farmed animals (primarily pigs, but also cows and chickens), from where it can be transmitted to humans.