title: Immunological unresponsiveness of neonatal rats to infection with Nippostrongylus brasiliensis. The competence of neonatal lymphoid cells in worm expulsion.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000276:immunology*; D000917:Antibody Formation; D005260:Female; D006725:Hookworm Infections / Q000276:immunology*; D008198:Lymph Nodes / Q000276:immunology; D017710:Lymphocyte Transfusion; D008214:Lymphocytes / Q000276:immunology*; D008297:Male; D010270:Parasite Egg Count; D051381:Rats; D013270:Stomach / Q000032:analysis; D014184:Transplantation, Homologous; D014251:Trichostrongyloidea / Q000302:isolation & purification