<i>Aedes aegypti</i> Mosquito (IMAGE) Entomological Society of America Caption The Aedes aegypti mosquito, an invasive insect that originated in Africa, is the primary transmitter of Zika, chikungunya, dengue, and yellow fever. Credit Matt Barton, University of Kentucky Usage Restrictions Credit Matt Barton, University of Kentucky 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.