How to tell if fish is subjected to Ciguatera? Is there any way to tell if fish is infected/subjected to ciguatera.

I understand that if you ingest fish that is infected with ciguatera you run the risk of becoming violently ill, and that subsequent ingestions will make you even more ill.  Therefore is there any way to tell if a fish has ciguatera?

I ask as I know not to eat certain fishes that I have caught in the tropics, but still do not know enough about the subject.
Not without a lab to test the fish.  Most outbreaks go unreported, or are spread too far apart. If it's local they would quit selling the fish for a week or two at a local market. That does not stop them from being shipped to a different location in 3rd world countries, or mixed in the fishing boats to be shipped wherever.