[pkaye]

US CDC was originally created to deal with mosquitos causing malaria in the US. The US FDA also had a priority review voucher program to incentivize development a prevention or treatment for various tropical diseases including Dengue.

https://www.fda.gov/about-fda/center-drug-evaluation-and-res...

Also there have been an number of locally acquired dengue causes in the US. Maybe with climate change it might increase.

https://www.cdc.gov/dengue/statistics-maps/historic-data.htm...