This superbug has been doing the rounds of our hospitals for some time. But is it a problem caused only by poor hygiene, and why does it seem to affect hospitals in the UK more than anywhere else? One reader thinks it is linked to the overabundance of antibiotics that are put in our food, which causes resistance to those antibiotics that are used to fight the MRSA bug. Several readers agree that the overuse of antibiotics has stripped our intestines of important flora, which weakens our immune systems. These 'friendly flora' help the liver, which usually comes under extra strain in hospital when the patient is usually given a range of drugs. Bee propolis is a natural antibiotic that can fight the MRSA bug, says one reader.