Two complement-fixing antigens from infected yolk sacs.  II.  The nature of the virus antigen and its relation to the phosphatide antigen.
D000906:Antibodies; D000941:Antigens; D000956:Antigens, Viral; D003165:Complement System Proteins; D010743:Phospholipids; D009956:Psittacosis / Q000276:immunology*; D015017:Yolk Sac
D000906:Antibodies; D000941:Antigens; D000956:Antigens, Viral; D010743:Phospholipids; D003165:Complement System Proteins
ANTIGENS AND ANTIBODIES; COMPLEMENT; ORNITHOSIS/immunology