title: Satellite viruses, helper viruses, and synergistic action.
mesh_terms: D000256:Adenoviridae; D000818:Animals; D000941:Antigens; D001358:Avian Sarcoma Viruses; D003168:Complement Fixation Tests; D006224:Cricetinae; D046508:Culture Techniques / Q000592:standards*; D004279:DNA, Viral / Q000096:biosynthesis; D005455:Fluorescent Antibody Technique; D000882:Haplorhini; D006378:Helper Viruses; D006389:Hemagglutinins, Viral; D006801:Humans; D008979:Moloney murine leukemia virus; D010942:Plant Viruses; D011120:Polyomavirus; D013539:Simian virus 40; D014762:Viral Interference; D014765:Viral Vaccines / Q000592:standards; D014776:Virus Cultivation / Q000592:standards; D014779:Virus Replication; D014780:Viruses / Q000302:isolation & purification*
chemical_list: D000941:Antigens; D004279:DNA, Viral; D006389:Hemagglutinins, Viral; D014765:Viral Vaccines