Infant, Newborn human 58 Humans 52 article 48 newborn 46 Infant 42 Child, Preschool 40 Adult 36 Adolescent 34 Argentina 32 Child 32 Male 32 child 32 infant 32 Female 30 adult 30 female 30 male 30 adolescent 28 preschool child 26 priority journal 26 Animals 18 Aged 14 Chagas Disease 14 Trypanosoma cruzi 14 major clinical study 14 Chagas disease 12 Middle Aged 12 aged 12 blood 12