AstraZeneca is an international bio-pharmaceutical company driven by innovation. It discovers, develops and produces medicines in major therapeutic domains such as cardiology, oncology, gastroenterology, infectiology, the respiratory system and the central nervous system. It also distributes these medicines in over 100 countries. AstraZeneca has around 62,000 employees worldwide, of whom 11,000 are active in R&D. It employs around 350 people in Belgium and Luxembourg at two sites: Uccel (Belgium) and Ehlange (Grand Duchy of Luxembourg).