Welcome to the Spring 2012 edition of Mariposa News. This is a special issue reporting on PHAEurope’s “Breathtaking” awareness campaign. The campaign, led by PHA Europe and supported by Bayer HealthCare, was launched on International Rare Disease Day (RDD), 29th February 2012, under the patronage of Eurordis, the European Organization for Rare Diseases.PHAE – Mariposa News (2012 Spring N.7 – SE)