RE: Sushi
Fish is said to be avoided because of the Mercury levels, not the bacteria. So it wouldn't matter if it was made at home, in a factory or anywhere else.
Actually, the rice is prone to bacteria! so is the seaweed.... yes mercury is in fish but in a very small amount like in one roll? can't see how that would do much harm you'd have to eat quite a few rolls!

Eating fish is so good for pregnant women but again, in moderation. I eat sardines 2 times a week Mmmm yum! Great brain food.