http://www.immune.org.nz/vaccines/efficiency-effectiveness There is science around how long they ask. I'm surprised you have been quite so ready to leap to "no science" as an option. Yes it is a statistics game and again we know the numbers and know what levels are required to maintain a herd immunity, which helps people like yourself by making the spread of the contagion much more difficult. This is pretty basic stuff, we know it works, we have proven it and we prove it time and time again.
I appreciate that things are odd in the USA due to the way medicine and health has been commercialised, but trust me it is dirt cheap in Europe and we have none of the problems you allude to.
No need to protect me or my family.. our genetic line shows no issue with any of the diseases. According to the US's CDC people start to show waning titers at 22 days, especially to the measles.... so with that variance...it is statistically impossible to produce "herd" immunity in a population. Regardless, excited about this format because I join to publish science. I have experimented on various different species with vaccines...long term studies, short term...and even purposely exposed the "herd" (of goats actually) to an ill animal. I have also found contaminants...ect. Excited to share the results and my documented evidence. So enjoy the ride!!!