Polymyxins - a group of drugs classed as critical to human medicine - were until now the only group of antibiotics that worked when all others had failed.
But experts have identified the first germs to become resistant to the drugs. They warned of the inevitable spread of uncontrollable superbugs that attack the blood and lungs.
The discovery was made by Chinese doctors working with UK experts from Bristol and Cardiff Universities.
Bacteria resistance to antibiotics is fast increasing in the world today and this is going to be a big problem if infected people can't be treated again because of the resistance.
And the more the antibiotics we use, the easier it is for bacteria to evolve to become resistant to them. So it will be wise if we don't just pop antibiotic pills anytime we think we need it.
There are absolute indications for taking antibiotics and we should consult our Doctors before taking them.
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