Epstein-Barr virus in infancy.
D000367:Age Factors; D000906:Antibodies / Q000032:analysis*; D000917:Antibody Formation; D005455:Fluorescent Antibody Technique; D006564:Herpesviridae / Q000276:immunology; D006566:Herpesviridae Infections / Q000276:immunology*; D004854:Herpesvirus 4, Human / Q000276:immunology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn
D000906:Antibodies