title: The avirulence of the cultivated y strain of Trypanosoma cruzi.
mesh_terms: D000818:Animals; D007165:Immunosuppression Therapy; D008297:Male; D051379:Mice; D011239:Prednisolone / Q000494:pharmacology*; D014345:Trypanosoma / Q000472:pathogenicity*; D014765:Viral Vaccines; D014774:Virulence; D014776:Virus Cultivation
chemical_list: D014765:Viral Vaccines; D011239:Prednisolone