Abbildung_1 (IMAGE) Heidelberg University Caption Mikroskopieaufnahme und Computermodell der Interaktion von infizierten Zellen (grün) und nicht-infizierten Zellen (rot) in Kollagenstrukturen (grau). Credit Oliver Fackler / Frederik Graw Usage Restrictions This images may be used only in connection with the contents of this press release, and the source of the image must also be cited. 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.