title: Antivirin, a new viral inhibitory factor produced from cells cultured in the absence of viral infection.
mesh_terms: D000998:Antiviral Agents / Q000494:pharmacology; D046508:Culture Techniques; D004267:DNA Viruses / Q000187:drug effects; D006367:HeLa Cells; D006801:Humans; D012328:RNA Viruses / Q000187:drug effects
chemical_list: D000998:Antiviral Agents