1. Institute of Molecular and Cellular Biology (IBMC), Porto, Portugal
2. Laboratories of Microbiology, Institute for Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
3. Immunology, Institute for Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
4. Gulbenkian Institute of Sciences, Oeiras, Portugal