In Brescia, a variant of Sars-CoV-2 virus “extremely less powerful” has been isolated. This was announced by the director of the Microbiology laboratory of the Asst Spedali Civili and president of the Italian virology society (Siv-Isv), Arnaldo Caruso .
“While the viral strains that we have been used to seeing in recent months, which we have isolated and sequenced, are biological bombs capable of exterminating target cells in 2-3 days – he explains to Adnkronos Salute -, this to start attacking them needs minimum of 6 days »: twice the time.
The news will be published scientifically, but Caruso wants to anticipate it “to send a message of hope”. The researchers studied a swab of an asymptomatic subject with high viral load, but weaker.
In other words, by putting him in contact with good cells to attack, “he could not even kill them all”. Indeed, even “just to start attacking them it needed at least 6 days”, against the “48-72 hours” sufficient for the classic strains to finish all the cells available. “We still don’t know if and how much this variant circulates, nor if it is genetically different from the others. However, we can say that something is happening”.
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