"Superhero bacteria" resist alcoholic antiseptics and are dangerous

Scientists said that "super-bacteria" resistant to antibiotics that can cause serious infections in hospitals have become more resistant to hand disinfectants and alcohol-based sterilizers.

The researchers found these alarming results during a research on the "new wave of antibiotic-resistant bacteria" in Australian hospitals, where they are becoming increasingly dangerous despite the widespread use of hand disinfectants.

The team focused on a group of intestinal bacteria known as intestinal bacteria, a growing problem around the world, because they are increasingly resistant to drugs even newer antibiotics such as Vancomycin.

The team tested samples of the bacteria taken from Australian hospitals over 19 years and found specific genetic changes in the "resistant intestinal bacteria of Vancomycin", which was able to show increased resistance to the drug.

The findings were published Wednesday (August 1st) in the journal Science Translational Medicine.

Vaccomycin-resistant intestinal bacteria can cause infections in the urinary tract, wounds and bloodstream, which are difficult to treat.
According to the researchers, if this approach continues, hospitals will not be able to rely on current measures to prevent the spread of infection among older people and patients who can not control it.

As part of efforts to counteract the emergence of antibiotic-resistant bacteria in hospitals such as VACC, MRSA, or methicillin-resistant staphylococcus aureus, since mid-2000 health institutions around the world have adopted stringent health measures, including alcohol jelly purgatory.

This has helped to reduce the incidence of common bacteria such as MRSA, which causes thousands of deaths annually, but the results were not the same with respect to the resistant bacteria of Vancomycin, prompting researchers to investigate the possibility of resistance to alcohol purified.

The researchers examined 139 isolated bacterial samples collected between 1997 and 2015 from two hospitals in Melbourne, and examined their ability to survive whenever exposed to isopropyl, an organic compound belonging to alcohol.

The results revealed that the samples collected after 2009 were on average more resistant to alcohol disinfectants compared to those taken since 2004.

The researchers then spread all the bacterial samples on the floors of the rat cages and found that alcohol-resistant samples were more able to enter and grow in the mice's gut after cleaning the cages with isopropyl alcohol handkerchiefs.

Professor Paul Johnson, professor of infectious diseases at Austin Health at the University of Melbourne in Australia, who helped lead the research, said the results should not lead to any radical change in the use of alcohol-based disinfectants, as these disinfectants will remain highly effective in reducing infection Serious in hospitals especially those that result from "MRSA".

The health authorities need to provide higher alcohol-focused products, renew efforts to ensure the strict cleaning of hospitals, and isolate patients who have been found to be infected with VACC.

source

arabic.rt