This is surely a piece of good news:
"According to James, the next step of this research will be to use the FNIH grant to explore population replacement strategies using the genetically modified mosquitoes. He stressed that no genetically altered mosquitoes will be released at any time during these studies."
Now, the dengue fever virus has been around for century, been infecting millions of people worldwide each year, the fatal rate is high and both developed and third world nation are also trouble by it.
This Scientific breakthrough do bring a lot of hope for future Humanity.