title: Rubella infection and reinfection distinguished by avidity of IgG.
mesh_terms: D003937:Diagnosis, Differential; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D012008:Recurrence; D012409:Rubella / Q000276:immunology* / Q000378:metabolism
chemical_list: D007074:Immunoglobulin G