GSK Vaccines is one of the world's leading companies in the fields of prophylactic & therapeutic vaccine research, development & production with over 30 vaccines approved for marketing & 20 more in development. Headquartered in Belgium with 8000 employees, GSK Vaccines also has 15 manufacturing sites around the globe. GSK Vaccines is a key supplier of international organizations such as GAVI & UNICEF and collaborates with country decision makers to develop vaccination policies.