Egg fluids contain a stimulating substance for growth of viruses.
D000482:Allantois / Q000032:analysis*; D000653:Amniotic Fluid / Q000032:analysis; D000818:Animals; D002645:Chickens; D005321:Extraembryonic Membranes / Q000032:analysis*; D005260:Female; D005347:Fibroblasts; D007372:Interferons; D007668:Kidney; D007739:L Cells; D012672:Semliki forest virus / Q000254:growth & development; D013268:Stimulation, Chemical; D010948:Viral Plaque Assay; D014779:Virus Replication / Q000187:drug effects*; D014817:Vitelline Membrane / Q000032:analysis*
D007372:Interferons