I may be misreading it, but it appears from this and every other source that I've read that the vaccine is only available to children from 9 to 16, those that live in affected areas, and have been previously infected. So I'm not aware of any vaccine available to adults.
"In May 2019, Dengvaxia was approved in the United States as the first vaccine approved for the prevention of dengue disease caused by all dengue virus serotypes (1, 2, 3 and 4) in people ages nine through 16 who have laboratory-confirmed previous dengue infection and who live in endemic areas.[17][6] Dengue is endemic in the US territories of American Samoa, Guam, Puerto Rico, and the US Virgin Islands.[17]"
Disappointing for sure, it seems like a workable vaccine could have been developed since this Dengue has been around a long time.
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