title: Persistent problems with persistent herpesviruses.
mesh_terms: D000212:Acyclovir; D006147:Guanine / Q000031:analogs & derivatives / Q000627:therapeutic use; D006561:Herpes Simplex / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects; D012008:Recurrence
chemical_list: D006147:Guanine; D000212:Acyclovir