Here's a simple example. The absolute risk reduction from the Ebola vaccine is tiny, about a thousandth of a percent. Does that mean you don;t need the Ebola shot before your canoe camping trip on the Ebola river? No, you'll need that along with malaria, hepatitis, etc. Your colloidal silver and quinine isn't going to cut it. And you'll be quarantined when you return.
From the linked article on the previous post
“To a lay person, a phrase like “95% effective” means one of two things: either that she or he,
upon exposure to the virus, is protected 95% of the time, or that 95% of the people who take
the vaccine are protected 100% of the time.
And this is where the mutual eagerness of the two highly motivated groups — the public; the
profiteers — intersect. The public wants to hear “95% effectiveness” and think it knows what
those words means. The drug companies want the same thing as the public; it wants the
public to think it knows what those words mean.”