Bonzo again:

"The reason that some otherwise healthy people succumb to the virus, is due to viral load - nothing to do with Johnson not being present at COBRA meetings or what this government has or has not done. If you expose anyone to a high-enough level of viral organisms, or expose them frequently to these organisms, then the viral population in effect overwhelms the immune response. This is what we see in healthcare workers."

Again, can you point to a study to support this? A paper in Lancet maybe?