1. Combat disease around the world. Trailing new vaccines, screening programmes
2. Provide advice for travellers on what vaccinations are required for different countries
3. Co-ordinate emergency response to disasters or outbreaks of disease i.e. Ebola
4. Conducts or funds research to share with governments across the world e.g. breastfeeding, leading cause of death, cancer prevention
5. Co-ordinates health promotion globally i.e. fighting obesity, decreasing smoking, increasing vegetable consumption
6. Provides information on global health risks
7. Provides statistics on the spread of diseases i.e. HIV
8. Make recommendations about health behaviour i.e. sugar consumption