Actually that's true partly... And an obs saying that is actually showing his ignorance of another culture and in this case it could be dangerous.

Sushi is raw fish. Pregnant women that I know who are Japanese say that they do not eat this during pregnancy. Also the nori rolls you see en masse at the local shopping cenbtre food court sit there for hours and are pre prepared. Japanese women make their own and eat it. It's vastly different.

A large number of women contracted listeriosis from rice not too long ago in Australia. It's of course everyones personal choice. But the choice needs to be made with facts not here say. The doctor that said what he did is not being completely accurate..