Aedes aegypti mosquito (IMAGE) Utah State University Caption A female Aedes aegypti mosquito gets a blood meal from a human host. Utah State University biologist Norah Saarman, along with colleagues from University of California, Davis and Yale University, are studying landscape connectivity in the species, a primary vector for the spread of dengue, Chikungunya and Zika viruses in humans. Credit James Gathany, CDC Usage Restrictions Credit author 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.