Malaria mosquitos (IMAGE) University of Gothenburg Caption Malaria was once thought to be caused by the smell of stagnant water (hence the name male aria = bad air) Credit Goran Vignjević Usage Restrictions None License Original 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.