title: Letter: Prolonged rubella IgM antibody response.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D001170:Arthritis, Infectious / Q000209:etiology / Q000276:immunology*; D005260:Female; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D012409:Rubella / Q000276:immunology*; D012412:Rubella virus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D007075:Immunoglobulin M