title: Neutralizing activity in human sera against the leukocyte-transforming agent.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D000917:Antibody Formation; D002140:California; D002460:Cell Line; D002648:Child; D046508:Culture Techniques; D005019:Ethyl Ethers / Q000494:pharmacology; D005455:Fluorescent Antibody Technique; D000882:Haplorhini; D004854:Herpesvirus 4, Human / Q000187:drug effects / Q000276:immunology*; D006801:Humans; D007244:Infectious Mononucleosis / Q000276:immunology* / Q000382:microbiology; D007962:Leukocytes; D008213:Lymphocyte Activation; D008875:Middle Aged; D009500:Neutralization Tests; D010614:Pharynx / Q000382:microbiology; D013997:Time Factors; D014470:Umbilical Cord
chemical_list: D005019:Ethyl Ethers