Coxsackie B Virus (IMAGE) PLOS Caption Coxsackie B virus (red) infects cells positive for the heart stem cell marker Sca-1 (green). Cells positive for both appear yellow. Nuclei of all cells are stained blue with DAPI. Credit Ralph Feuer et al. 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.