Sandfly (IMAGE) Lancaster University Caption In Latin America, Europe, North Africa and parts of central and East Asia, the Leishmania parasite is transmitted from infected dogs by sand flies when they bite people Credit World Health Organisation Usage Restrictions None 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.