1. Department of Infectious Diseases, National Institute of Health, Lisbon, Portugal
2. CREM, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa , Caparica, Portugal
3. Medical Microbiology Unit, Instituto de Higiene e Medicina Tropical, IHMT, Universidade Nova de Lisboa, Lisbon, Portugal
4. The members of this group are listed at the end of the article