title: Trypanosoma rhodesiense and T. brucei: absence of antibodies in chicken embryos.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D000917:Antibody Formation; D002642:Chick Embryo / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006386:Hemagglutination Tests; D008722:Methods; D013997:Time Factors; D014345:Trypanosoma / Q000276:immunology*