Slashdot Mirror
UK Milk Supply Contains New MRSA Strain
Tests on milk from several different farms across the U.K. have turned up evidence for a new strain of MRSA — bacteria which have evolved resistance to common antibiotics. As long as the milk is properly pasteurized, it poses no threat to consumers, but anyone working directly with the animals bears a small risk of infection. According to The Independent,
"The disclosure comes amid growing concern over the use of modern antibiotics on British farms, driven by price pressure imposed by the big supermarket chains. Intensive farming with thousands of animals raised in cramped conditions means infections spread faster and the need for antibiotics is consequently greater. Three classes of antibiotics rated as 'critically important to human medicine' by the World Health Organization – cephalosporins, fluoroquinolones and macrolides – have increased in use in the animal population by eightfold in the last decade."
Settle down you two. You do realize that the term 'scientists' is broadly encompassing? People that work for the evil industry. People whose moral compass shines brightly through the evil fog of the world (that's IT, no more caffeine this morning).
They don't live under volcanoes and play with obese felines. Well, most of them anyway.
First of all, bacterial resistance genes turn out to me much more complex than previously thought. Many resistance genes have evolved on cassettes which have the ability to evolve irrespective of the host bacterial genome. So they are selected to hang around, even in the absence of the initial selection factor.
Further, these cassettes can be transmitted to OTHER bacteria even without antibiotic selection and annoyingly enough, tend to get lumped together into multiple antibiotic resistant bacteria. So, we've let the cat out of the bag - it was inevitable although we managed to make it a bigger problem faster than need be.
TL;DR antibiotic resistance is going to be around a long time whether or not we use the antibiotics. Scientists aren't all greedy douchebags. There are more things in heaven and earth, dear Slashdotters, Than are dreamt of in your philosophy.
Faster! Faster! Faster would be better!
They reject the casette when the selecting factor is removed. Fyi.