title: Decreased C3 levels in a chronic virus infection: equine infectious anemia.
mesh_terms: D000818:Animals; D002845:Chromatography; D003165:Complement System Proteins / Q000032:analysis* / Q000302:isolation & purification; D003298:Coombs Test; D004586:Electrophoresis; D004859:Equine Infectious Anemia / Q000276:immunology*; D004912:Erythrocytes / Q000276:immunology; D005455:Fluorescent Antibody Technique; D006736:Horses; D007106:Immune Sera; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D007136:Immunoglobulins / Q000032:analysis; D007678:Kidney Glomerulus / Q000032:analysis / Q000276:immunology; D005719:gamma-Globulins / Q000032:analysis
chemical_list: D007106:Immune Sera; D007136:Immunoglobulins; D005719:gamma-Globulins; D003165:Complement System Proteins