title: Xenogeneic hybridoma cells contain and secrete virus particles.
mesh_terms: D000818:Animals; D006825:Hybridomas / Q000382:microbiology*; D007181:Inclusion Bodies, Viral / Q000648:ultrastructure; D051379:Mice; D012190:Retroviridae / Q000254:growth & development* / Q000648:ultrastructure; D014779:Virus Replication