"Until she gets one of those diseases such as polio which will leave her possibly crippled for life.'
Unfortuntately, most people who are orthodoxly educated re medical information on such issues have no idea of the ability of the immune system to resist and/or recover from such conditions. Thus measures to avoid such diseases are not utilized. These include fasting, right foods, colon hydrtoherapy, homeopathics, herbs, traditional chinese medicine, etc.
We just function in different health paardigms. I am very secure in mine.
You forgot other, equally effective prophylactics such as cow-turd poltices, spunk-water cocktails, and throwing a dead cat over your shoulder at midnight.