title: Failure to detect interfering agents in febrile respiratory illnesses.
mesh_terms: D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D006367:HeLa Cells; D017955:Poliovirus; D012141:Respiratory Tract Infections / Q000382:microbiology*; D014616:Vaccinia virus; D014762:Viral Interference