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Use of the mask against coronavirus, Mario Molina’s last battle

The last great scientific battle of Mario Molina was in the current times of COVID-19. The 1995 Nobel Prize in Chemistry was a staunch critic that the use of face masks was not imposed as mandatory among populations. Last June 10, the article “Mouth covers and transmission of COVID-19” emphasized that transmission by particles in the air plays a dominant role in the spread of the coronavirus.

The study issued from his Mario Molina Center is based on a comparison of trends in COVID-19 infections in Italy and in New York City before and after the mandatory implementation of face masks and suggests “that this measure prevented more than 700,000 infections in Italy between April 6 and May 9, and more than 66,000 infections in New York City between April 17 and May 9. “

In the study called “Identifying airborne transmission as the dominant route for the spread of COVID-19”, in which several scientists participated, among them Mario Molina points out: “Our results indicate that the airborne transmission route is highly infectious and is the dominant factor for the spread of COVID-19. Mitigation measures can be identified through the trends of the pandemic. Our analysis reveals that the difference with and without the mandatory use of face masks represents the determining measure to shape the pandemic trends “.

He also noted that this protective measure significantly reduces the number of infections. And it adds that other mitigation measures implemented in the United States, such as maintaining social distance, are not enough to protect the public. “Our work also emphasizes the need to use fundamental science to make the right decisions for the current pandemic and for future ones.”

This scientific article on the use of masks and the transmission of COVID-19 was published in the Proceedings of the National Academy of Sciences, United States; and Mario Molina was a punctual diffuser of the urgency of the use of face masks and he dedicated himself to talking about the subject, even invited by the authorities of Mexico City.