title: A simple technique for the estimation of viral antibody levels by immunofluorescence.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D002478:Cells, Cultured; D003470:Culture Media; D005455:Fluorescent Antibody Technique / Q000379:methods*; D006801:Humans; D007158:Immunologic Techniques
chemical_list: D000914:Antibodies, Viral; D003470:Culture Media