https://www.frontiersin.org/articles/10.3389/fimmu.2020.6113... This explains why we need to develop a vaccine that provides mucosal immunity to defeat COVID.

> “The team found that the Delta variant virus was 5.7-fold less sensitive to the sera from previously-infected individuals, and as much as eight-fold less sensitive to vaccine sera”

I read this as “natural immunity is better”. Unless I’m reading that wrong, why don’t we hear more about this? I’m vaccinated AND got a breakthrough infection and I’m worried that my immunity is weaker than that of my wife who was unvaccinated but recovered.

> it takes eight times as many antibodies from a vaccinated individual to block the virus

If this is the case, then how can we explain how vaccinated individuals experience less severe symptoms and fewer deaths? Is it because once vaccinated, the immune system is able to respond to this 8x higher demand?

The current vaccines only provide systemic immunity but fail to provide mucosal immunity. Until they come up with a nasal vaccine plus the shots we will not stop COVID-19 as vaccinated people can still act as vectors of transmission.

The virus is here to stay, vaccines or no vaccines. We need to learn to treat it effectively or accept vaccine boosters every 6 months

I was told this is a pandemic of the unvaccinated.