There have been no reports of health or environmental harm in other locations where genetically modified mosquitoes have been introduced over the last decade.
The biotech Oxitec had released the genetically engineered insects with the hope that they would breed with wild populations and produce offspring that die young. But that’s not always happening.
In an effort to prevent the spread of Zika virus, Harris County officials are in discussions with Oxitec to release insects engineered to produce short-lived offspring.