Indoor Residual Spraying (IMAGE) Emory Health Sciences Caption A research technician sprays the ceiling and walls of a home in Merida, Mexico, as part of the first study to show how vital insecticide-resistance monitoring is to control a mosquito that can spread the Zika virus. Credit Photo by Nsa Dada Usage Restrictions Must include photo credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.