Unexpected dangers of using disinfectants

A new study by Australian scientists from Macquarie University shows that the use of bio-disinfectants can stop the action of antibiotics and lead to the emergence of antimicrobial resistant ESKAPE pathogens.

Eskape bacteria are completely harmless in their natural environment. However, if a person with a weakened immune system comes into contact with these pathogens, it can lead to life-threatening diseases, including pneumonia, sepsis, and various infections. Today, aminoglycoside antibiotics are the last way to fight ESKAPE, but they may soon lose their effectiveness.

In their study, experts from Australia tested the effect of benzalkonium chloride (BAC) disinfectant on aminoglycoside antibiotics and ESKAPE pathogens, reports the Medical Express website.

Dr Francesca Short, head of the research groups, explained: “BAC is a bio-antiseptic valued for its non-toxicity and is often used in healthcare, agriculture and common household products such as antibacterial wipes, wound disinfectants, and eye and ear drops.”

The team found that even a small amount of BAC can block the action of aminoglycoside antimicrobials, preventing them from entering the bacterial cell.

“Using BAC products reduces the effectiveness of aminoglycosides and greatly increases the incidence of new antibiotic-resistant bacteria. If you are only cleaning your house, there is no need to use hospital disinfectant or anything called an ‘antibacterial’. Regular soap and cleaning products remove virtually all germs.”