Loss of interferon activity from the medium of cell cultures producing interferon.
D000327:Adsorption; D000818:Animals; D002646:Chikungunya virus / Q000378:metabolism*; D003470:Culture Media; D046508:Culture Techniques; D005347:Fibroblasts / Q000378:metabolism*; D007372:Interferons / Q000032:analysis / Q000096:biosynthesis*; D014616:Vaccinia virus
D003470:Culture Media; D007372:Interferons