Do your own research and read up on the rat lung worm disease.  If you eat out a lot, you are going to be at a higher risk as there is no way to know how well the veggies that you consume were washed or not.
That is the reality.  I would not take what the Dept of Health and guys like Okamoto tell you as being gospel.  This disease is very bad as the worm infects the brain and there really is no treatment and diagnosis is
slow and difficult.