Excuse my incorrect tooltip, yes I should've inserted "Select Week Commencing" into tooltips.
To make the above clearer, if I were to select all the 'week commencing' from dropdown, select Afghanistan and Australia (which would prompt only the relevant states to pop up under 'State' filter), my tooltips ideally will look like this:
Week Commencing: Mon, 28 Mar 2016, Mon, 04 Apr 2016, Mon, 11 Apr 2016, Mon, 18 Apr 2016, Mon, 25 Apr 2016
Country: Afghanistan, Australia
State: Australian Capital Territory, Hirat, Kabul and 9 more
Hope it's clearer now!