Wow. This is interesting, but also opens a real can of worms.

Reducing Dengue Fever like that sounds like a good result, but I'm not sure about the ethics of conducting an experiment like that when an entire population of people are potentially effected. And this also raises the possibility of a bad actor exploiting mosquitos in ways that are more harmful.

Here's what the article says about a similar experiment in the Florida Keys:

The modified mosquitoes are all male, and Oxitec contends that because only female mosquitoes can bite, the program poses no risk to humans.

But, says Barry Wray of the Florida Keys Environmental Coalition, 'People here in Florida do not consent to the genetically engineered mosquitoes or to being human experiments.'

Dana Perls, food and technology program manager at Friends of the Earth, called the program a 'dark moment in history' and demanded the EPA 'halt this live experiment immediately.'

Anyway, it is an interesting article. Thanks for the share.