KU Leuven, Rega Institute for Medical, Laboratorium of Clinical and Evolutionary Virology, Leuven, Belgium.|Emweb, Herent, Belgium.|Center for Global Health and Tropical Medicine, Institute for Hygiene and Tropical Medicine, Lisboa, Portugal.|KU Leuven, Rega Institute for Medical, Laboratorium of Clinical and Evolutionary Virology, Leuven, Belgium.