Chagas disease Female Animals 80 Male 80 female 80 Chagas Disease 72 male 70 Humans 60 animal 60 human 58 Argentina 56 Trypanosoma cruzi 56 Triatoma infestans 50 nonhuman 50 article 48 Insect Vectors 44 Triatoma 44 adult 44 controlled study 42 parasitology 34 disease carrier 32 Adult 30 Article 30 Middle Aged 30 disease transmission 24 Adolescent 22 priority journal 22 transmission 22 adolescent 20 animal experiment 20