Maraba Virus (IMAGE) The Ottawa Hospital Caption An immunotherapy approach that involves the Maraba virus (above) and checkpoint inhibitors can cure aggressive breast cancer in mice. Credit The Ottawa Hospital Usage Restrictions For use only with stories about this research. 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.