Disinfectants in Face Wipes Promote Drug Resistant Superbugs : Study

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Disinfectants in Face Wipes Promote Drug Resistant Superbugs : Study
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Disinfectants have always been thought as allies in the fight against disease, and it became more apparent during the COVID-19 pandemic.

But now a study has found that disinfectants commonly used in face wipes, eye and ear drops may act as a double agent in blocking antibiotics from working and even promoting antibiotic resistance.

A team from Macquarie University in Australia tested the effects of the disinfectant benzalkonium chloride (BAC) on aminoglycosides antibiotics and the ESKAPE pathogens.

These common bacteria Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species are harmless enough in their natural habitats of gut, soil or water.

However, if a patient who is already critically ill or immunocompromised comes into contact with one, it can result in life-threatening illness including pneumonia, sepsis and wound infections.


The team found even when administered at low levels, BAC can block aminoglycosides and prevent the antibiotics from entering the bacterial cell.

"BAC is a biocide disinfectant valued for being non-toxic, and as a result is widely used in healthcare, food safety and agriculture, as well as in common household products such as antibacterial wipes, wound disinfectants, eyedrops and eardrops."
Francesca Short, Department of Molecular Science, Macquarie University in Australia

The researchers found that it also dramatically increases the frequency at which new, potentially resistant mutants emerge.

The results suggest that measures need to be taken to prevent the exposure of bacteria to lower levels of BAC-levels that are not high enough to kill bacteria but may be high enough to allow mutations to occur or help the bacteria gradually get used to the effects of the antibiotics.

"While disinfectants like antibacterial wipes usually contain high levels of BAC that are sufficient to kill the bacteria they come into contact with initially, they still pose a risk as this compound has a long half-life, which means it remains in the environment for a long time before breaking down," Short said.

The researchers also suggest that the effectiveness of aminoglycosides may be reduced by low levels of BAC taken at the same time, for example, if someone were using antibacterial eyedrops while taking a course of antibiotics.

Short said as consumers, we shouldn't choose antibacterial products as a default just because we think they're giving our families better protection.

"If you're cleaning around the house, in general there's no need to use anything marked 'antibacterial''. Ordinary soap and cleaning products will remove nearly all the germs.

"When it comes to personal care products like eyedrops, in future, it would be preferable to switch to single-use, pre-sterilised products instead of using chemical preservatives, as BAC not only reduces the effectiveness of antibiotics, but can also cause irritation and even eye damage with long-term use," Short noted.

(This story was published from a syndicated feed. Only the headline and picture has been edited by FIT.)

(This story was auto-published from a syndicated feed. No part of the story has been edited by The Quint.)

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Topics:  Antibacterial Soap   Latest news   covid19 

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