Mareks Virus (IMAGE) University of Oxford Caption Electron Microscopy image of Marek’s disease virus particles replicating in the nucleus of an infected cell. Credit: The Bioimaging group, Pirbright Institute. Credit Credit: The Bioimaging group, Pirbright Institute. Usage Restrictions The image can be used for editorial purposes only and with the credit The Bioimaging group, Pirbright Institute. License Original 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.