1. a Postgraduate Program in Microbial Biology, Biological Sciences Institute, University of Brasília, Brasília (DF), CEP: 70910-900, Brazil
2. b Central Laboratory for Public Health (LACEN-DF), SGAN 601, Asa Norte, Brasília (DF), CEP: 70830-010, Brazil
3. c Campus of Ceilândia, University of Brasília, Centro Metropolitano, Conjunto A, Ceilândia Sul, Brasília (DF), CEP: 72220-275, Brazil