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Soap and Warm Water Combo Helps to Eliminate C. Difficile Effectively
Dr. Michael Libman, Director of the Division of Infectious Diseases at the McGill University Health Center (MUHC) carried out the study to find the most effective method to control the infection caused by this bacteria, and found that cleaning hands with soap and warm water was the best way.
To determine the best method to control Clostridium.difficile, Dr. Libmans team, which included Dr. Oughton, Dr. Vivian Loo, director of the MUHC Department of Microbiology, and Susan Fenn, MUHC assistant Chief Technologist, tested five separate hand washing protocols that emulated hospital conditions as closely as possible.
As a result of the conditions created, the hands of the ten volunteers were contaminated with C.difficile, which they washed successively with: regular soap and warm or cold water, antiseptic soap and warm water, an alcohol-based solution, and eventually with a disinfectant towel.
The results were striking: the protocols that involved washing with water eliminated more than 98 percent of the bacteria, while washing with an alcohol-based solution eliminated almost none! The protocol involving a disinfectant towel eliminated around 95 percent of bacteria. Dr. Oughton said.
One feature of the bacteria family to which C.difficile belongs is the ability to produce spores when under stress. These spores, which are highly resistant, then produce new bacteria when favourable conditions return. Eliminating them is a major part of the challenge in controlling the bacteria.
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