After spending some years in Italy I developed a partial immunity to mosquito bites. It lasted for about half a year.
Use to be... native species were mostly a problem during summer and during night time.
But since about 15 years ago you had a massive spread of invasive Asian Tiger mosquitos (Aedes albopictus) genomic studies show it was likely introduced via Italy and Albania simultaneously.
Those things are nasty, go 24/7, and are just a very different beast in terms of disease vector.
There are already established population pockets as far North as Switzerland. Yet another problem that is likely to worsen as temperatures continue to rise.
They employ an amazing tactic by sometimes walking up to their target.
You can hear mosquitoes flying, but their footsteps are obviously inaudible.
Side note: As a US resident in an area with a ton of mosquitos, I cannot understand why other countries don't heavily use window screens. Lizards a pretty cool, flies and other flying bugs are just annoying and gross.