Sobrescribir enlaces de ayuda a la navegación Inicio Noticias y Medios World Immunization Week 2014, 24-30 April 23 Abril 2014 Press Conference Announcement World Immunization Week 2014, 24-30 April Dr Jean-Marie Okwo-Bele, Director, Immunization, Vaccines and Biologicals, WHO Ms Tracey Goodman, Technical Officer, Immunization, Vaccines and Biologicals, WHO WHO Listen to the audio