University of York - York Biomedical Research Institute, Federal University of Piauí - Department of Community Medicine and Institute of Tropical Diseases Natan Portela, University of York - York Biomedical Research Institute, Federal University of Piauí - Department of Community Medicine and Institute of Tropical Diseases Natan Portela, University of York - York Biomedical Research Institute, University of York - York Biomedical Research Institute, University of York - York Biomedical Research Institute, Federal University of Maranhão - Postgraduate Program in Health Sciences, Federal University of Piauí - Department of Community Medicine and Institute of Tropical Diseases Natan Portela, Aarhus University - Centre for Quantitative Genetics and Genomics, University of York - York Biomedical Research Institute, University of York - York Biomedical Research Institute and Federal University of Piauí - Department of Community Medicine and Institute of Tropical Diseases Natan Portela