Sushi Go Around Maki

Okay to continue eating sushi?
Alright so I have been eating sushi for around 3 years. I love the Maki. Anyways when I do get sushi I go to restaurants like House of Hunaan and Kasai (Japanese restaurant that does only sushi, very well too
Anyway one of my friends informed me I can get worms from sushi. Now I don’t know if this is important but I don’t eat sashimi or nagiri. How great are my chances of getting worms would you say.
Kasai is extremely japanese authentic, and I have come to trust the chef at the sushi bar their. Am I going to be okay to continue eating it?
Also I don’t know if this makes a difference. The waitress once told me they fly their fish over from japan alive. Is that good or bad. Also I was just looking at reviews. Many consider this the best sushi restaurant in Ohio. I am probably worrying over nothing..
Uh, House of Hunaan doesn’t sound like an authentic Japanese establishment. If you go to the authentic ones, they only serve very fresh fish.
Sushi go round part 2