An Aerial View of Iquitos, Peru (IMAGE) Emory Health Sciences Caption A study in Iquitos, Peru, is focusing on how asymptomatic human carriers contribute to the spread of dengue fever, transmitted by the Aedes aegypti mosquito. "This information is important," says Emory University disease ecologist Gonzalo Vazquez-Prokopec, "because Latin America is more than 80 percent urban and the Aedes aegypti mosquito is in every town." Credit NASA satellite image Usage Restrictions Must include 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.