Been lurking mostly in this thread - but have a question.
Do vaccination rates include booster shots? (If it's been asked - I apologise, I must have missed it.)
I know they keep track of childhood immunisations but if the rates for zones are based on that alone - then with something like pertussis would be inaccurate. Most people I know are unaware that the pertussis vaccination requires a booster shot - and even I only found out recently.