title: Correspondence: Transfer of immunity to T. cruzi.
mesh_terms: D000818:Animals; D001769:Blood / Q000469:parasitology; D005260:Female; D007111:Immunity, Cellular; D007116:Immunization, Passive; D051381:Rats; D013154:Spleen / Q000166:cytology / Q000276:immunology; D014349:Trypanosoma cruzi / Q000276:immunology*