New Superbug Gene Discovered, Resistant To Last-Resort Antibiotic

I’m not here to ‘doom and gloom’ you; however, for those of you who have compromised immune systems, are suffering from any disease, and/or have to be hospitalized, you truly need to read and know this.  ~NationalAddictionNews.com

While sifting through the bacterial genome of salmonella, Cornell University food scientists discovered mcr-9, a new stealthy, jumping gene so diabolical and robust that it resists one of the world’s few last-resort antibiotics.

Doctors deploy the antibiotic colistin when all other infection-fighting options are exhausted. But resistance to colistin has emerged around the globe, threatening its efficacy.

“This last-resort antibiotic has been designated a highest-priority antibiotic by the United Nations’ World Health Organization, and the mcr-9 gene causes bacteria to resist it,” said Martin Wiedmann, food safety professor and senior author on the study, published May 7 in the journal mBio. “In treatments, if colistin does not work, it literally could mean death for patients. If colistin resistance spreads, a lot of people will die.

Co-lead author Laura Carroll, a computational biologist and Cornell doctoral candidate, found mcr-9 in the genome of a strain of food-borne pathogen salmonella.

Mcr-9 is the latest in this new series of “mobilized colistin-resistance” genes – originally discovered in 2015. The National Center for Biotechnology Information, part of the National Institutes of Health, has added details about this new gene to its database. Medical professionals and others can now use this information to identify mcr-9 in bacteria isolated from food products and people.

Details about mcr-9 in national and international databases enable scientists to develop better prevention and treatment, explained Wiedmann. “This improves our ability to get an early warning,” he said.

Bacteria isolated from food products can now be tested for mcr-9, and patients can be screened for colistin-resistant bacteria, which possess mcr-9.

“If you go to a hospital and this gene is floating around, that can be trouble. The gene is moveable. It jumps,” Wiedmann said. “In a hospital setting, being able to screen a patient for resistance allows doctors and nurses to isolate the patient and maintain biosecurity.”

Article published by Cornell University and found also found here.


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