Whit the zika outbreak I thought, what if we could some how harden(genetics) the mosquito inmune system to fight off zika? (or any other undesirable virus)

Then find a way to replace the native populations with the hardened ones. (For example some kind of selective trap)

Something similar to what is currently done with livestock, which is vaccinated against many posible human patogens.

I think, experimentation with mosquitoes could be more agressive that trying to find a way to cure a human. And you would not eliminate the population which could lead to problems down the road.