title: DIRECT AND INDIRECT COMPLEMENT-FIXATION TESTS FOR INFECTIOUS BRONCHITIS VIRUS.
mesh_terms: D000818:Animals; D001991:Bronchitis; D002642:Chick Embryo; D003168:Complement Fixation Tests; D006168:Guinea Pigs; D000882:Haplorhini; D006358:Hot Temperature; D001351:Infectious bronchitis virus; D007668:Kidney; D009500:Neutralization Tests; D012106:Research; D046509:Tissue Culture Techniques; D014357:Trypsin; D014466:Ultraviolet Rays; D014776:Virus Cultivation; D014780:Viruses
chemical_list: D014357:Trypsin
keywords: BRONCHITIS; CHICK EMBRYO; COMPLEMENT FIXATION TESTS; EXPERIMENTAL LAB STUDY; GUINEA PIGS; HEAT; KIDNEY; MONKEYS; NEUTRALIZATION TESTS; TISSUE CULTURE; TRYPSIN; ULTRAVIOLET RAYS; VERTEBRATE VIRUSES; VIRUS CULTIVATION