Disinfectants Cause Some Bacteria to Adapt, Thrive

By Bob L.

This article is one of my biggest complaints I have had for a few years, being that drugs are used for any thing, from a stubbed toe to a major diseases with no re guard for the people on what it does to the immune system over time.

A few years back they were pushing every one to use disinfectant soap until they found out that it was not helping any thing but bacteria survive.

It is not that the bacteria is getting stronger , it is that immune systems are getting weaker do to over uses of drugs that are on the market to day, they have so many side effects that they just give another drug for that side effect, and the next thing you know you are on five to ten drugs feeding the drug companies.
LiveScience Staff
Mon Dec 28

To keep sickness at bay, many of us constantly wash hands and disinfect surfaces. But a new lab study shows one pesky bacterium eats cleansers for breakfast: When disinfectant was applied to lab cultures of the bacteria, they adapted to survive not only the disinfectant but also a common antibiotic.

The research team focused on Pseudomonas aeruginosa, a bacterium responsible for a range of infections in people with weakened immune systems. When the scientists added increasing amounts of disinfectant to P. aeruginosa cultures, the bacteria adapted to survive not only the disinfectant but also the antibiotic called ciprofloxacin.

Here’s how: The bacteria were able to more efficiently pump out antimicrobial agents. The adapted bacteria also had a genetic mutation that allowed them to resist ciprofloxacin-type antibiotics specifically.

“In principle this means that residue from incorrectly diluted disinfectants left on hospital surfaces could promote the growth of antibiotic-resistant bacteria,” said lead researcher Gerard Fleming of the National University of Ireland in Galway. “What is more worrying is that bacteria seem to be able to adapt to resist antibiotics without even being exposed to them.”

The results, published in the January issue of the journal Microbiology, show just how savvy some bugs are, adding to research on superbugs – drug-resistant microbes that modern medicine struggles to combat.

MRSA, or methicillin-resistant Staphylococcus aureus, has become a deadly and growing problem in hospitals in recent years. And news out this week suggests the country’s first case of a highly drug-resistant form of tuberculosis.

A major factor in the emergence of these antibiotic-resistant bacteria is the overuse and misuse of antibiotics, according to the Centers for Disease Control and Prevention. The new study suggests disinfectants may be part of the problem, though more research is needed to firm up the link.

“We need to investigate the effects of using more than one type of disinfectant on promoting antibiotic-resistant strains,” Fleming said. “This will increase the effectiveness of both our first and second lines of defense against hospital-acquired infections.”

Fleming also stressed the importance of studying the environmental factors that might promote antibiotic resistance.

LiveScience.com chronicles the daily advances and innovations made in science and technology. We take on the misconceptions that often pop up around scientific discoveries and deliver short, provocative explanations with a certain wit and style.

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