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