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Antibiotic 'last line of defence' breached

  1. Nov 22, 2015 #1
    Bacterial antibiotic resistance gene found in China likely to spread worldwide, researchers say

  2. jcsd
  3. Nov 22, 2015 #2
    I seems odd that bacteria would develop a gene which confers resistance to an antibiotic which hasn't been used for a very long time.
  4. Nov 22, 2015 #3


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    2017 Award

    Many antibiotics (including colstin) are naturally produced by microorganisms to combat other bacteria, and some bacteria in the environment have evolved resistance to these antibiotics. The main problem occurs when these resistance genes get transferred to from the soil bacteria in which they typically occur into human pathogens.

    The bigger question is why we were using antibiotics of last defense in farm animals, which is much more likely to breed resistance.
    Last edited: Nov 22, 2015
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