The mosquitos at Magdeburg were pretty bad...  I always react badly to insect bites, but these suckers, I got a bite on my hand on Tuesday, hand swelled up really big, and now 8 days later my hand is only just back to normal.  Got bit 5 times through my jeans while walking to a restaurant.  They seemed much worse out beyond the hotel, not so bad in and around it, thankfully.  I suspect smoker-con out the front helped keep them away.  Next year, I bring lots of insect repellant!