“I’m the first to admit, no vaccine is going to be 100 percent effective to an individual. Most vaccines are in the 90 percent range. But the point is, even if those people do get infections, the infection is usually milder and there’s less contagiousness, because you’re partially immunized.”
— Thomas Kuhls, MD, pediatrician
First of all, we do not know how “effective” any vaccine is, or how long that effectiveness might last. The only thing we can do is measure the “efficacy” of a vaccine in a laboratory setting (not real life), and what is measured a vaccine’s ability to simulate the production of antibodies by the immune system. This is done by taking a blood titer.
But there’s a tiny little problem here, and that is that the presence of antibodies (any level) in one’s blood is not necessarily indicative of one’s immunity to a disease. People with high antibody titers still contract the disease, while people with low antibody titers can avoid contracting the disease. Antibody science is still in the development stages. It is far from settled.
And as to Dr. Kuhl’s silly parroted assumption that an imperfect vaccine is still better than no vaccine because the imperfect vaccine will provide some protection and at least prevent a contracted disease from being as severe as it otherwise would’ve been, well, that’s not science. That’s called wishful thinking, or, more accurately really… a sell job.
Oh, and I get a kick out of the term “partially immunized.” It’s kind of like being “partially pregnant.” How does that work, exactly? Don’t you just love that expensive medical school education.