LA Times Reports True Scale of Infectiousness of Delta

From the LA Times:

The first is the emergence of the Delta variant — at least twice as transmissible as the previous dominant variant, Alpha, and capable of producing a viral load up to 1,000 times greater in the upper throat.

Originally, a person infected with the ancestral strain of the coronavirus spread it to 2.5 other people on average. But the Delta variant is estimated to spread to five to eight other people. That means that within 10 cycles of transmission of the virus, in a population with no immunity to the virus, instead of fewer than 10,000 people being infected, more than 60 million will be infected, Dr. Carlos del Rio, an Emory University epidemiologist and infectious-diseases expert, said at the same UC San Francisco forum.

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