Congratulations to Jeyan Jayarajan, who has been granted a travel award to fund his attendance at this year’s Annual Meeting of the European Hematology Association in Vienna. He will present work from his PhD studies which examine the effect of co-housing “wildling” mice with laboratory mice on the hematopoietic system. This results in the horizontal transfer of microorganisms and multicellular pathogens that are normally found in wild mice to the experimental mice and represents what we believe is a more physiologic model of infection/colonisation than the direct injection of purified virus/bacteria particles.