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May 22, 2020 Hasn't the coronavirus become less aggressive? "If fewer severe cases are seen today, it is largely due to the use of masks" because they reduce the amount of virus that is transmitted. "Those who become infected with many viruses, in fact, have a disease with a completely different evolution compared to those who become infected with few". Andrea Crisanti, director of Microbiology and Virology of the AO University of Padua, explained the reason for the decrease in the number of serious cases of Covid-19 during the transmission Agorà on Rai Tre."A virus - continued Crisanti, consultant of the Veneto Region for the emergency - is not weak or strong, good or bad but more virulent or less, and has a transmission capacity that can be measured. Based on experimental evidence, we see that when it enters an ecological niche, for example humans, its virulence generally increases and does not decrease ".
Today, he continued, "fewer serious cases are seen because the viral load has decreased and this is largely due to the use of masks". The reason is that "if two people talk wearing a mask, the amount of viruses they transmit is much lower. And the viral load has a huge impact on the evolution of the disease". To virologists who speak of a less aggressive virus "I can only say that I am taking the medical texts back into my hands".
"The reopenings are the result of a compromise. We opened with a risk that politics has considered acceptable. We will see that it was acceptable in the next few days. Yesterday in the Veneto for the first time zero cases, great result" Andrea Crisanti, Univ. Padova # agorarai pic.twitter.com/0D7nYkvUot
- Agorà (@agorarai) May 22, 2020