Disease Barrier Illustration (image) Stanford University -- School of Humanities and Sciences Share Print E-Mail Caption This is an illustration of modern humans overcoming disease burden before Neanderthals. Credit Vivian Chen Wong Usage Restrictions The image may only be used with appropriate caption or credit. Share Print E-Mail 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.