The behavior of psittacosis agents of diverse origin and extreme antigenic structure in the chicken chorio-allantois.
D000818:Animals; D000941:Antigens; D002417:Cattle; D002455:Cell Division; D002642:Chick Embryo; D002689:Chlamydia / Q000276:immunology* / Q000472:pathogenicity; D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D004487:Edema; D005321:Extraembryonic Membranes / Q000276:immunology*; D006168:Guinea Pigs; D007106:Immune Sera; D051379:Mice; D009500:Neutralization Tests
D000941:Antigens; D007106:Immune Sera