There have been few documented and undocumented wolf attacks on humans in North America in comparison to wolf attacks in Eurasia, and few relative to attacks by other larger carnivores. Fatal attacks Below is an amalgamated list of verified, questionable and unverified attacks. Non-fatal attacks...
https://en.wikipedia.org/wiki/List_of_wolf_attacks_in_North_America
And just to be clear: I'm not anti-wolf. However, we need to be realistic about wild animals and the danger that they can pose.