I was vaccinated against all possible diseases wherever there was an Air Force base in 1983. I don’t know if Dengue Fever was among them. Of course, all my service records were destroyed in a fire.
Fortunately, tropical diseases are nearly unknown in Western Oregon.
I don’t think we had a vaccine for Dengue until around 2015.
There was no vaccine for dengue then. First vaccine approved by US was in 2019.