Molecular and biological characterization of Trypanosoma cruzi strains isolated from children from Jequitinhonha Valley, State of Minas Gerais, Brazil oleh Jaquelline Carla Valamiel de Oliveira e Silva, Girley Francisco Machado de Assis, Maykon Tavares de Oliveira, Helder Magno Silva Valadares, Italo Faria do Valle, Nivia Carolina Nogueira de Paiva, Helen Rodrigues Martins, Marta de Lana