Rat lungworm has a ground zero, Puna.

[nanasohana]

Here is an article from CDC about ratlung https://wwwnc.cdc.gov/eid/article/21/7/14-1980_article and was surprised to find this " Moreover, rat lungworms were identified outside their known habitat and in a new rat host species (S. hispidus) in Oklahoma, an area predicted to lack suitable habitat for the parasite (9). Our results provide a new perspective on the distribution of rat lungworms in the United States and indicate a northward range expansion that substantially increases the risk for disease spread within humans and wildlife."