RecruitingGanciclovir Resistant/Refractory Cytomegalovirus Infection in SOT Recipients and HSCT PatientsThe ReCySOHT study is a multicenter, retrospective, observational case-control study on the risk factors for developing a ganciclovir-resistant/refractory (GCV-RR) cytomegalovirus infection in patients receiving solid organ transplant (SOT) or hematopoietic stem cell transplant (HSCT). Aims of the study are to investigate the incidence of and risk factors for GCV-RR CMV infection in SOT recipients and HSCT patients in order to design further studies aimed at preventing and improving the patient management of GCV-RR CMV infections.