title: Biohazards of long-term lymphocyte cultures.
mesh_terms: D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D006564:Herpesviridae / Q000472:pathogenicity; D004854:Herpesvirus 4, Human / Q000472:pathogenicity; D006801:Humans; D007757:Laboratory Infection / Q000517:prevention & control*; D008214:Lymphocytes; D008722:Methods; D009858:Oncogenic Viruses; D011314:Preventive Health Services; D011481:Protective Clothing; D012328:RNA Viruses / Q000472:pathogenicity; D012190:Retroviridae / Q000472:pathogenicity; D013997:Time Factors