title: [Rapid serodiagnosis of influenza by a modified radial haemolysis test: immune response (author's transl)].
abstract: A modification of the single radial haemolysis test by treatment with Cl3Cr of the virus coated red blood cells is proposed for a rapid, more sensitive and reproducible serodiagnosis of Influenza infections. The reagents "red blood cells-virus-Cl3Cr" is stable at 4 degrees C for at least 1 month: the modified test gives results within 3 hours, in measuring the H-anti-H specific reactions. The anti-influenza A immune response was studied in patients of different age, bled at different time after exposure. The IgM do not diffuse in the agarose and do not haemolyse. A clear haemolytic area is produced by IgG, partially haemolysed areas occur when there is a competition between specific IgM and IgG and in the case of reactions involving cross-reacting antigenic determinants.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D002857:Chromium; D006462:Hemolytic Plaque Technique; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007223:Infant; D007231:Infant, Newborn; D007251:Influenza, Human / Q000175:diagnosis* / Q000276:immunology; D008875:Middle Aged; D012698:Serologic Tests / Q000379:methods; D013997:Time Factors
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D002857:Chromium
vernacular_title: Diagnostic sérologique rapide de la grippe par la méthode d'hémolyse radiale modifiée et évolution des anticorps.