Bit counterintuitive to think that vaccinated people with antibody & T cell islands in their nose to transmit infection at the same rate as those who are unvaccinated. So, would be good to see data & probably need culture data to confirm not dead viral particles from vax success
However, I think it is about inoculum. If you are vax'd & have high rates of community transmission around you, more likely for virus to get in, cause a mild breakthrough as stimulate antibodies (T cells, which fight severe disease already there)
Delta variant has higher viral loads than alpha or ancestral strain so I am sure -with those higher viral loads, vaccinated people can transmit with mild breakthroughs- However, transmitting at equal rates seems counterintuitive.
What I don't think anyone is disputing/ debating is the need to get eligible adults who are unvaccinated, vaccinated. You are seeing conversation turn towards vaccine requirements for federal employees, Facebook, Apple, other tech companies requiring vaccines. We need to increase
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