Trypanosoma cruzi 32 nonhuman 32 xenodiagnosis Argentina 28 Chagas disease 28 Animals 26 Chagas Disease 24 article 22 controlled study 22 polymerase chain reaction 20 rural area 20 Triatoma infestans 18 parasite transmission 18 animal experiment 14 priority journal 14 trypanosomiasis 14 Article 12 Disease Reservoirs 12 Dog Diseases 12 Dogs 12 Cat Diseases 10 Cats 10 Rural Population 10 Triatoma 10 Xenodiagnosis 10 animal 10 disease carrier 10 female 10 isolation and purification 10 mammal 10