BRUSSELS - BELGIUM - 26 APRIL 2011 - - WHO European Immunization Week 2011 - - Her Royal Highness Princess Mathildee of Belgium, Laurette Onkelinx, Vice Prime Minister, Minister for Social Affairs and Public Helalth, Belgium, and following Laurette Onkelinx, Vice Prime Minister, Minister for Social Affairs and Public Helalth, Belgium, and Zsuzsanna Jakab, Regional Director, WHO Regional Office for Europe. Photo: Erik Luntang / INSPIRIT Photo