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08 Dec 2015 09:30:14
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Invulnerable to antibiotics, the microbe began global expansion

the Bacteria with a gene that provides resistance to "antibiotics of last resort", found in China and Denmark. Scientists urgently looking for these microorganisms in other countries. The new discovery indicates that gram-negative bacteria can become immune to antibiotics: all the necessary genes already available.

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Bacteria with a gene that provides resistance to "antibiotics of last resort", found in China and Denmark. Scientists urgently looking for these microorganisms in other countries. The new discovery indicates that gram-negative bacteria can become immune to antibiotics: all the necessary genes already available.

About the opening of the gene mcr-1 responsible for resistance to colistin is an antibiotic from the class of polymyxins, which are considered the antibiotics of last generation (they are used when other classes of drugs no longer able to destroy dangerous microorganisms), Chinese scientists reported in November of 2015, recalls "Ribbon.ru". New gene found in 15% of meat samples and in 21% of animals, whose blood was taken for analysis from 2011-2014 in South China.

after Learning about the discovery, Frank Aarestrup from Danish technical University began to look for a gene in a database of bacterial DNA collected in Denmark in the same years. Corresponding sequence, the scientist discovered the person who picked up the infection through the blood in 2015, and five samples of poultry meat imported from Germany in 2012-2014. These bacteria also have genes that provide protection against other antibiotics, including penicillin and cephalosporins.

Arestrup believes that Chinese and Danish genes mcr-1 are identical and are of Chinese origin. Probably, the gene arose in the body of pigs and chickens that local farmers in large numbers were fed colistin to stimulate their growth, since a significant portion of 12 thousand tons of colistin, which is given to animals in China. In Europe it is prohibited. Now to the checks and joined American organizations.

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