Variant Evolving News Today

Created by more and more trance m mission of the delta variant. >> and data that shows why cases among the vaccinated are growing. john barry joins us, thank you for being with us. the u.s. around 60,000 cases a day, compared to 11,000 a month ago. delta is around three times more transmissible. how worried are you about a variant evolving that could completely bypass existing vaccines? >> i am worried. i think, you know, all the five pandemics going back to 1889

Ago. delta is more than three times more transmissible. and you write in a new opinion piece for the "washington post" about how previous pandemics have seen much deadlier variants in the years after the first waves. how worried are you about a variant evolving that can completely bypass existing vaccines? >> i am worried. i think all the five pandemics going back to 1889 that we know anything about in detail, you know, the virus enters the human population, its a new virus, and it adapts to hum...