Not sure if you are making fun or not but best thing to do would be to ask FDA to take the vaccine approval/development seriously.

I'm interested in being prepared for potential health challenges, particularly mosquito-borne diseases like dengue fever. It seems to be a concern in some areas, and I believe knowing how to identify and manage potential symptoms can be very helpful. I'd like to learn about stocking a minimal amount of essential supplies, like mosquito repellent, to help prevent bites in the first place

I'm in Europe so not very familiar with tropical diseases beside the annoying mosquitoes

If you get yourself a supply of Permethrin and some mosquito nets, you will be miles ahead of most people.

Permethrin is great stuff, the mosquito lands on permethrin treated cloth, the mosquito falls down dead. It is something to see. You can treat your clothes with it and spray it on your walls and ceilings.

https://en.wikipedia.org/wiki/Permethrin

Yes but unfortunately dengue carrying mosquitos bite during the day and they are very sneaky. They go for the feet, ankle etc..