Flying insects in hospitals carry ‘superbug’ germs

via UPI:

Many flies and flying insects in hospitals carry bacteria that could pose an infection risk to patients, and more than half of them carry the types that resist antibiotics, a new study says.

British researchers used ultraviolet-light flytraps, electronic fly killers and sticky traps to collect nearly 20,000 flies, aphids, ants, wasps, bees and moths at seven hospitals in England over 18 months, and found that almost 9 in 10 insects had potentially harmful bacteria on or in their bodies.

A total of 86 bacterial strains were found in the insects. Enterobacteriaceae — a family that includes E. coli and Salmonella — were the most common (41 percent), followed by Bacillus (which includes the food poisoning germ B. cereus at 24 percent and staphylococci (which includes S. aureus, a cause of skin infections, abscesses and respiratory infections) at 19 percent..

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In some cases, the level of bacteria carried by insects was enough to potentially cause infection in humans. The findings show that “a variety of flying insects collected from U.K. hospitals do indeed harbor pathogenic bacteria of different species,” said study lead author Federica Boiocchi, a Ph.D. student at Aston University in Birmingham.

The study also found that 53 percent of the bacterial strains on the insects were resistant to at least one class of antibiotics — so-called “superbugs.” Of those, 19 percent were resistant to multiple antibiotics.

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Resistance was most common for penicillin, but resistance to other widely used antibiotics, including vancomycin and levofloxacin, was also found, according to the study.

“What’s quite interesting, though, is the high proportion of drug-resistant bacteria found in these samples. It’s a vivid reminder of how our overuse of antibiotics in health care settings is making infections more difficult to treat,” Boiocchi said in a university news release.




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