Wow, then I was really lucky to have gotten dengue the last time I was in the country, 12 years ago. At the time I remember reading that there was little chance

Wow, then I was really lucky to have gotten dengue the last time I was in the country, 12 years ago. At the time I remember reading that there was little chance of it spreading back to the States where those mosquitoes don't exist, so I shouldn't be surprised that progress on a vaccine to cover all the strains remains slow. For better and for worse, Zika does not have that same challenge.