Epstein-Barr Virus Particles (IMAGE) Children's National Hospital Caption Because viral infections can be controlled by T-cells, the body's infection-fighting white blood cells, the Children's National Hospital first-in-humans Phase 1 dose escalation trial aimed to determine the safety of T-cells with antiviral activity against a half dozen opportunistic viruses: adenovirus, BK virus, cytomegalovirus, Epstein-Barr virus, Human Herpesvirus 6 and human parainfluenza-3 An electron microscopy image showing three Epstein-Barr virus particles Image credit: NIAID Credit NIAID Usage Restrictions Please credit NIAID 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.