This might be of interest to you:
“Flu-pocalypse? 2017 flu season could be worse, vaccine not as effective, expert warns”
My wife and I both noted this year how sore or arms were from the shot as compared to other years. So, I was thinking...heck yea this is good juice! But, sad to say not true.
https://www.cdc.gov/flu/about/season/flu-season-2017-2018.htm#effectiveness
I was curious, so for anyone else who is...
Scroll down for the info on vaccine effectiveness.