Why the obsession on the subject?
If you are naive enough to think a Third World Ministry of Health Official is going to personally jump to your requests think again. I'm amazed you got an initial reply let alone a follow up, especially if you were as rude as you have been here.
That's an example of "rude".
There is absolutely no reason a tourist/visitor shouldn't be able to get information about Dengue in the area, preventative measures etc.
You might learn how to deal with annual tropical breakouts by reading this: http://www.fla-keys.com/dengue/
It's only a big deal if YOU make it a big deal