Since the outbreak and spread of the COVID-19, wearing masks has been a problem entangled by governments and public health officials in Western countries, including Canada. Some people say it's important, some people say it's not effective, but it's not the same... but one of the most convincing research at present proves that the mask is the most effective weapon in the battle with COVID-19!

Aspetic Clean Room

According to a report by the Toronto news The Star on June 13, a study conducted by four famous universities in the United States found that after being asked to wear a mask, New York reduced 66,000 infections from April 17 to May 9; Italy Reduced 78,000 infections from April 6 to May 9.

Laboratory / clean passageway

The four American universities involved in the study included the California Institute of Technology, the University of California, the Texas A&M University, and the University of Texas at Austin.

Automatic high-speed mask production line

The American research team pointed out that wearing masks in public places, along with measures to maintain social distance and track virus contacts, "represents the most likely to stop the COVID-19 pandemic and win the chance of this war."

Melting spray production line

They also wrote in the research report: "(If you don't wear a mask) other restrictions or mitigation measures, such as the social distance policy implemented in the United States, are not enough to protect the public."

The curve begins to bend from the day you wear the mask

 Mario Molina, a well-known professor in the Department of Chemistry and Biochemistry at the University of California and winner of the 1995 Nobel Prize in Chemistry, said: "We believe that if it is mandatory to use a mask and use it correctly, this may be a way to control the pandemic. the way."

The second production workshop

Professor Molina said that over a period of time, you can see interesting changes in the case curves of New York City and Italy: this line was originally going up, but began to bend on the day when the mandatory masking policy took effect.

Automatic plane mask machine

Professor Molina said, “It is very clear that mandatory use of masks is even more important than isolation and maintaining social distance, (because) it can reduce cases more effectively.”

Packaging area

The lead author of the study, Professor Molina, and Renyi Zhang, a well-known professor of atmospheric sciences at Texas A&M, added that unlike isolation and maintaining social distance, masks can effectively prevent inhaled water droplets and virus-carrying aerosols. These substances can be suspended in the air for several hours.

WHO finally changes its mouth, calling for more masks

According to a CTV report on June 7, WHO Director-General Tedros Adhanom Ghebreyesus said that WHO has updated relevant recommendations, and people should be encouraged to wear non-medical masks on certain occasions, especially when it is difficult to keep people The distance between them includes buses, shops, religious gatherings and other mass gathering places.

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Tan Desai said at the press conference that the reason why WHO made changes to the earlier recommendations was mainly "based on increasing evidence." For example, a recent study found that homemade cloth masks may help "moderately reduce transmission."

According to WHO, encouraging citizens to wear non-medical masks has many benefits, including reducing the risk of asymptomatic carriers transmitting the virus, reminding people that the pandemic is continuing so that everyone can play a role in stopping the virus epidemic, and Relax the restrictions to stimulate the economic activities of various countries.