Dec 23, 2019 06:00:00

An experimental image that can be understood at a glance that `` hand washing '' is important is posted on SNS and becomes a topic

When the flu spreads from autumn to winter,

it is important to wash your hands and prevent infectious diseases . In the meantime, the results of an experiment in which the untouched and hand-washed hands touched the bread and left it on the SNS were posted on SNS, and too shocking changes have become a hot topic.

This Simple Bread Experiment Is a Genius Way to Get Kids to Wash Their Hands
https://www.sciencealert.com/this-simple-experiment-with-bread-is-a-genius-way-to-get-kids-to-wash-their-hands

School experiment shows students importance of hand-washing
https://www.today.com/health/school-experiment-shows-students-importance-hand-washing-t170186

Diana Robertson of Discovery Elementary School in Idaho, USA, conducted an experiment, a science class. That is, freshly baked bread made on the same day is divided into five pieces, sealed, and the state is observed for one month.

The first one is to wipe the keyboard of a Chromebook, a shared laptop in the classroom with bread. The result is remnant, and it is completely black with mold.

As a control, the second bread was quickly sealed with disposable gloves by Dr. Robertson. Nobody is touching it and it remains pure white.

On the other hand, the third bread, touched by unwashed hands of 17 students and the teacher, has mold of various colors such as black, white and yellow.

Next, everyone washed their hands with lukewarm water and soap and then touched the bread. It remains the same as the second one, except that the traces that everyone touched are hollow.

Finally, I waited a few hours after washing my hands and then touched it with a hand sprayed with disinfectant. As a result, although it was better than touched with unwashed hands, mold still grew.

Rigorous experiments by experts have shown that disinfectants are not as effective as hand washing.

Research result that influenza virus attached with saliva is invincible for 4 minutes against alcohol disinfection-gigazine

by Phovoir

Dr. Robertson's post, which published the results of this experiment on Facebook, received about 67,000 shares at the time of writing and received 9878 comments.


Dr. Robertson told the U.S. broadcaster NBC: `` Since it was ineffective to say to my children to wash their hands, it was necessary to teach the importance of hand washing more clearly. The effect of the experiment was so amazing that children now wash their hands voluntarily. '