title: Heat-labile accessory factor involved in vaccinia virus plaque neutralization.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D003165:Complement System Proteins; D005069:Evaluation Studies as Topic; D006168:Guinea Pigs / Q000276:immunology; D006385:Hemagglutination Inhibition Tests; D006358:Hot Temperature; D006801:Humans; D006878:Hydroxides; D007106:Immune Sera; D008251:Macaca / Q000276:immunology; D009500:Neutralization Tests; D000644:Quaternary Ammonium Compounds; D011817:Rabbits / Q000276:immunology; D012911:Snakes; D013997:Time Factors; D014616:Vaccinia virus / Q000276:immunology*; D014688:Venoms; D015054:Zymosan
chemical_list: D000956:Antigens, Viral; D006878:Hydroxides; D007106:Immune Sera; D000644:Quaternary Ammonium Compounds; D014688:Venoms; D003165:Complement System Proteins; D015054:Zymosan