A team of global researchers has found through genetic research of bacteria in animals that resistance to antibiotics used in China is growing. In their paper published in the journal Nature Food, The team described their entire genome collection of Escherichia coli samples collected from a large number of pigs, chickens, cattle and sheep raised in China between 1970 and 2019. They searched they have genes that provide resistance to certain common antibiotic drugs. They also explain why they believe their findings suggest China and other countries are looking for new ways to fight bacterial infections in humans and animals. Claire Heffernan, with the London International Development Center, published a News & Views article in the journal explaining the history of the use of antibiotics in agriculture and the work that has been done. to join this new work.
In recent years, scientists around the world have played the flute about the growing resistance to antibiotics used to treat human diseases. But the problem is with the animals. According to Heffernan, about two -thirds of the antibiotics administered each year are used in agriculture, mostly, animals. In this new work, the researchers considered the impact of such use on the development of resistance to antibiotic drugs to prevent or treat bacterial infections such as E. coli.
To find out, the researchers found 986 samples of bacteria from animals collected by companies in China over the past half century and subjected them to a whole -genome analysis, to find out. requiring changes in genes to provide resistance to antibacterial agents. They found evidence of a slow increase in resistance to antibiotics against E. coli in all studied animals. The overall rate is high, indicating that antibiotics are not effective in protecting animals. Researchers have also tested the susceptibility of new E. coli infections to certain antibiotics and found that overall, they have a longer shelf life than patients since the 1970s. different drugs are used to treat the same bacterial infection, associated with a higher resistance to use in humans as well.
Scientists have identified gene resistance to E. coli death
Lu Yang et al, The rapid rise of antimicrobial resistance genes among Escherichia coli in the 50 years of antimicrobial use in animal production in China, Natural Foods (2022). DOI: 10.1038 / s43016-022-00470-6
Claire Heffernan, antimicrobial resistance to Chinese animals, Natural Foods (2022). DOI: 10.1038 / s43016-022-00478-y
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Directions: Genetic study of bacteria in animals in China shows growing resistance to antibiotics (2022, April 1) Retrieved 1 April 2022 from https://phys.org /news/2022-04-genetic-bacteria-livestock-china-resistance.html
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