HDG ..and the % of those in R-IT that will be under 65 ?
Re Poland vs US
These vaccination rates place Poland far behind other European countries, where vaccination coverage reaches 25% (15,16), or the USA, where in 2004/2005 season 42% of adults from high-risk groups received vaccination, as well as 62.7% of people aged over 65 years (17).
Note this is old data ...but being as resourceful as you are I'm sure you can find and post the latest data on Flu Vaccinations for the R-IT like CAD populations for both the US and Poland.
Kiwi