Daniel Dandotti, PhD in Virology, University Paris VI, France. Post-doctoral researcher for the French National Agency for AIDS Research (ANRS) in the Virology Laboratory of Pitié-Salpêtrière Hospital, Paris. Research Scientist Program Leader in the R & D Department of the NHSBT UK, and Visiting Researcher in the Department of Haematology, University of Cambridge. Senior Research Scientist in the Department of Blood Transmitted Agents, National Reference Center for Transfusion Infectious Risks, National Institute of Blood Transfusion, Paris, France. Currently, Senior Research Scientist in the Department of Virology, Henri Mondor Hospital AP-HP and University of Paris-Est, INSERM U955, IMRB, Créteil, France. Co-chairman of the virology subgroup of TTID Working party of the ISBT. Research interests: molecular mechanisms of persistent blood-born viral infections, occult HBV infection, molecular epidemiology, blood safety.