Aedes aegypti mosquitoes are the primary transmitters of Zika virus.
"It's important to understand the behavior of the Aedes aegypti. They live in relatively clean water near homes. They range only a few hundred feet from where they breed. They are a daytime feeder. They stay near the ground," said Harris County Judge Ed Emmett.
There is no evidence mosquitoes in Texas are transmitting the Zika virus but doctors urge pregnant women especially to avoid mosquito bites.