Celtic, rice is safe to eat so long as you cook it and eat it. Rice that is stored in the fridge should not be reheated. This is when you could run into problems. Cold rice that has been stored should also not be eaten. So, just cook your sushi rice and do the sushi thing but don't keep any left overs. Eating freshly cooked hot rice is fine also.

The issue with listeria is that it loves cold environments and the cold temperature is what it grows in. Listeria is killed when it is cooked. HOwever, this is not the case with all bacteria so this is why we have to be extra careful in pregnancy.