The Mastercourse this time will be focused on Vaccines and Paediatric Infectious diseases. The scientific chairman, Prof. Fernanda Rodrigues, has prepared an excellent programme with famous faculty members. Mastercourse in Paediatrics is a workshop with only limited seating capacity. I, therefore, recommend early registration. The scientific committee of the Mastercourse has set up an interesting programme for both senior and junior doctors, which covers in-depth important clinical subjects. We, in addition, again anticipate a significant scientific contribution from junior and encourage them to submit abstracts. Those accepted, will be presented as posters or oral presentations with lead authors of accepted abstracts. Accepted abstracts will be published in the Frontiers in Paediatrics and, therefore, citable. Time: 8:00 am to 5:00 pm