Seven Lineages of Paratyphi A (IMAGE) University of Warwick Caption The seven lineages of Paratyphi A and associated geographic transmissions with date periods are represented. Credit University of Warwick 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.