Global Strep A Lineages Map (IMAGE) University of Melbourne Caption Global Strep A lineages map. Credit The Peter Doherty Institute for Infection and Immunity Usage Restrictions Credit: The Peter Doherty Institute for Infection and Immunity 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.