1. Instituto
de Ciencias Biologicas, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Pampulha, Belo Horizonte, Minas Gerais, Brazil
2. Instituto de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
3. School
of Chemistry and Biochemistry, School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332, United States