Rat lungworm has a ground zero, Puna.

[Kenney]

Aloha MarkP. Unfortunately, there is overlap.. Although we have no intention of giving up our catchment tanks, we do take some precautions. Slugs like water and sometimes fall into the water tanks, or get in through the intake. We use a stocking to strain the water as it enters the tank and I have found slugs in it. We add bleach regularly .So far, so good.
We have also seen slugs WAY up Mulberry and Papaya trees. We wash everything from the yard including citrus and bananas.