title: A sex difference in immunologic responsiveness.
mesh_terms: D000367:Age Factors; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D000941:Antigens; D004926:Escherichia coli; D005260:Female; D006801:Humans; D007110:Immunity, Active; D007223:Infant; D008297:Male; D012411:Rubella Vaccine; D012737:Sex Factors
chemical_list: D000906:Antibodies; D000941:Antigens; D012411:Rubella Vaccine