Gosh......this is pretty easy.....here is a hint......the genetically modified mosquitoes would have to be responsible for the spread of the disease, which means they would have to be released in the Carribean Islands and spreading the virus.
First:
It's not difficult to activate a gene that makes a mosquito immune to any particular malaria parasite (there are a lot of them) and lose the ability to pass it on. It's a relatively cheap laboratory procedure. In this case, the scientists turned on a gene in the mosquito's gut that controls SM1 peptide. SM1 peptide, a type of protein, appears to stop the development of the malaria parasite while it's living in the mosquito, rendering it harmless.
Second:
Genetically modifying a mosquito has always appeared to make it weaker. And a weaker, malaria-resistant mosquito won't win the survival game, so there's no point in releasing it into the wild. It'll just die off.
Third:
it'll be at least another 10 years before malaria-resistant mosquitoes would ever be released into the wild, and even in Brazil the theoretical discussion has not led to release in the wild of genetically modified mosquitoes, so Chrissy's absurd connection between the spread of this virus and the modified mosquitoes is in the end simply stupid. However, it would have been nice to have an intelligent conversation on this subject because few breathroughs have the promise of life saving results than genetically modified mosquitoes.