Effect of suppressing virus spread and reducing inhalation with a mask Confirmed by the University of Tokyo, etc. October 22, 4:09

A group such as the Institute of Medical Science, the University of Tokyo confirmed in experiments using actual viruses that wearing a mask as a countermeasure against the new coronavirus has both the effect of suppressing the spread of the virus and the effect of reducing the inhaled virus. I announced that I did.

This was announced by a group of Professor Yoshihiro Kawaoka and Assistant Professor Hiroshi Ueki of the Institute of Medical Science, University of Tokyo.

In a special laboratory where the virus does not leak, the group installed a mannequin that emits a flying eye containing the new coronavirus and a mannequin that reproduces breathing and inhales air facing each other, and investigated the effect of the mask.

As a result, when the mask was worn only on the inhaling side, the amount of virus inhaled was reduced by 17% with the cloth mask and 47% with the general surgical mask.

When I put on a medical mask called "N95" without any gaps, it decreased by 79%.

When the mask was worn only on the side where the fly was emitted, the amount of virus inhaled by the opposite mannequin was reduced by more than 70% in both the cloth mask and the surgical mask.

On the other hand, although both were effective when wearing masks, they were not able to completely prevent the inhalation of the virus.

Professor Kawaoka said, "The effect of masks has never been verified using actual viruses. I found it important to wear masks properly. However, wearing masks does not completely prevent the virus. There is no such thing, so it is important not to overconfide in the mask. "