title: The detection and avoidance of false-positive reactions in tests for rubella-specific IgM.
abstract: Serum specimens tested for rubella-specific IgM by the haemagglutination-inhibition technique may give false-positive results due to (a) storage at -20 degrees C, (b) bacterial contamination, or (c) inactivation at 56 degrees C. These false-positive reactions can be distinguished from rubella-specific IgM activity by their resistance to 2-ME.
mesh_terms: D003080:Cold Temperature; D005189:False Positive Reactions; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006358:Hot Temperature; D006801:Humans; D007075:Immunoglobulin M; D011247:Pregnancy; D012409:Rubella / Q000175:diagnosis*; D012412:Rubella virus / Q000276:immunology
chemical_list: D007075:Immunoglobulin M