Humans vulnerable to deadly superbugs

Q.  Researchers from China have found a gene mcr-1 enabling bacteria to be resistant to ________ which is the last line of antibiotic defence one has left.
- Published on 21 Nov 15

a. Polymyxins
b. Polymyzins
c. Polydyxins
d. None of the above

ANSWER: Polymyxins
 
Researchers in China have found a gene mcr-1 enabling bacteria to be resistant to last line of antibiotic defence- polymyxins. This means the last line of antibiotic defence has been breached and this has left humans prone to deadly superbugs. The mcr-1 gene was found on plasmids, which are mobile DNA that can be easily copied and transferred between different bacteria.

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